23156251147 has 32 divisors (see below), whose sum is σ = 24380559360. Its totient is φ = 21977230080.

The previous prime is 23156251117. The next prime is 23156251171. The reversal of 23156251147 is 74115265132.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23156251147 is a prime.

It is a super-3 number, since 3×23156251147³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23156251117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81824068 + ... + 81824350.

It is an arithmetic number, because the mean of its divisors is an integer number (761892480).

Almost surely, 2^23156251147 is an apocalyptic number.

23156251147 is a deficient number, since it is larger than the sum of its proper divisors (1224308213).

23156251147 is a wasteful number, since it uses less digits than its factorization.

23156251147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723.

The product of its digits is 50400, while the sum is 37.

The spelling of 23156251147 in words is "twenty-three billion, one hundred fifty-six million, two hundred fifty-one thousand, one hundred forty-seven".