23215294169 has 4 divisors (see below), whose sum is σ = 23237426100. Its totient is φ = 23193162240.

The previous prime is 23215294159. The next prime is 23215294181. The reversal of 23215294169 is 96149251232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13137744400 + 10077549769 = 114620^2 + 100387^2 .

It is a cyclic number.

It is not a de Polignac number, because 23215294169 - 2²⁴ = 23198516953 is a prime.

It is a super-2 number, since 2×23215294169² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23215294139) 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, 11064392 + ... + 11066489.

It is an arithmetic number, because the mean of its divisors is an integer number (5809356525).

Almost surely, 2^23215294169 is an apocalyptic number.

It is an amenable number.

23215294169 is a deficient number, since it is larger than the sum of its proper divisors (22131931).

23215294169 is a wasteful number, since it uses less digits than its factorization.

23215294169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22131930.

The product of its digits is 233280, while the sum is 44.

The spelling of 23215294169 in words is "twenty-three billion, two hundred fifteen million, two hundred ninety-four thousand, one hundred sixty-nine".