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123061441 = 136790023
BaseRepresentation
bin1110101010111…
…00010011000001
322120120011120011
413111130103001
5223000431231
620113344521
73023001466
oct725342301
9276504504
10123061441
1163512978
1235268141
131c659529
14124b566d
15ac0c9b1
hex755c4c1

123061441 has 4 divisors (see below), whose sum is σ = 123152832. Its totient is φ = 122970052.

The previous prime is 123061397. The next prime is 123061447. The reversal of 123061441 is 144160321.

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: 144160321 = 380337907.

It is a cyclic number.

It is not a de Polignac number, because 123061441 - 217 = 122930369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123061447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43645 + ... + 46378.

It is an arithmetic number, because the mean of its divisors is an integer number (30788208).

Almost surely, 2123061441 is an apocalyptic number.

It is an amenable number.

123061441 is a deficient number, since it is larger than the sum of its proper divisors (91391).

123061441 is an equidigital number, since it uses as much as digits as its factorization.

123061441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91390.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 123061441 is about 11093.3061347824. The cubic root of 123061441 is about 497.4017765229.

The spelling of 123061441 in words is "one hundred twenty-three million, sixty-one thousand, four hundred forty-one".

Divisors: 1 1367 90023 123061441