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164122061 = 672449583
BaseRepresentation
bin10011100100001…
…00110111001101
3102102211021010212
421302010313031
5314003401221
624141412205
74032004655
oct1162046715
9372737125
10164122061
1184708374
1246b6a065
1328004a5c
1417b23365
15e61db5b
hex9c84dcd

164122061 has 4 divisors (see below), whose sum is σ = 166571712. Its totient is φ = 161672412.

The previous prime is 164122039. The next prime is 164122067. The reversal of 164122061 is 160221461.

164122061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 160221461 = 442136241.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-164122061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164122067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1224725 + ... + 1224858.

It is an arithmetic number, because the mean of its divisors is an integer number (41642928).

Almost surely, 2164122061 is an apocalyptic number.

It is an amenable number.

164122061 is a deficient number, since it is larger than the sum of its proper divisors (2449651).

164122061 is an equidigital number, since it uses as much as digits as its factorization.

164122061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449650.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 164122061 is about 12811.0132698394. The cubic root of 164122061 is about 547.5061317190.

The spelling of 164122061 in words is "one hundred sixty-four million, one hundred twenty-two thousand, sixty-one".

Divisors: 1 67 2449583 164122061