164121093 has 8 divisors (see below), whose sum is σ = 243142400. Its totient is φ = 109414044.

The previous prime is 164121047. The next prime is 164121103. The reversal of 164121093 is 390121461.

164121093 is a `hidden beast` number, since 1 + 641 + 2 + 10 + 9 + 3 = 666.

It is not a de Polignac number, because 164121093 - 2⁶ = 164121029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 6078559 = 164121093 / (1 + 6 + 4 + 1 + 2 + 1 + 0 + 9 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164121193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3039253 + ... + 3039306.

It is an arithmetic number, because the mean of its divisors is an integer number (30392800).

Almost surely, 2^164121093 is an apocalyptic number.

It is an amenable number.

164121093 is a deficient number, since it is larger than the sum of its proper divisors (79021307).

164121093 is an equidigital number, since it uses as much as digits as its factorization.

164121093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6078568 (or 6078562 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 164121093 is about 12810.9754897900. The cubic root of 164121093 is about 547.5050553108.

The spelling of 164121093 in words is "one hundred sixty-four million, one hundred twenty-one thousand, ninety-three".