23154132187 has 2 divisors, whose sum is σ = 23154132188. Its totient is φ = 23154132186.

The previous prime is 23154132181. The next prime is 23154132227. The reversal of 23154132187 is 78123145132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23154132187 - 2²⁷ = 23019914459 is a prime.

It is a super-2 number, since 2×23154132187² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23154132181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11577066093 + 11577066094.

It is an arithmetic number, because the mean of its divisors is an integer number (11577066094).

Almost surely, 2^23154132187 is an apocalyptic number.

23154132187 is a deficient number, since it is larger than the sum of its proper divisors (1).

23154132187 is an equidigital number, since it uses as much as digits as its factorization.

23154132187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 37.

The spelling of 23154132187 in words is "twenty-three billion, one hundred fifty-four million, one hundred thirty-two thousand, one hundred eighty-seven".