123654131 has 2 divisors, whose sum is σ = 123654132. Its totient is φ = 123654130.

The previous prime is 123654127. The next prime is 123654143. The reversal of 123654131 is 131456321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123654131 - 2² = 123654127 is a prime.

It is a super-2 number, since 2×123654131² = 30580688226730322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123654131.

It is not a weakly prime, because it can be changed into another prime (123654161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61827065 + 61827066.

It is an arithmetic number, because the mean of its divisors is an integer number (61827066).

Almost surely, 2^123654131 is an apocalyptic number.

123654131 is a deficient number, since it is larger than the sum of its proper divisors (1).

123654131 is an equidigital number, since it uses as much as digits as its factorization.

123654131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 123654131 is about 11119.9879046697. The cubic root of 123654131 is about 498.1990287940.

The spelling of 123654131 in words is "one hundred twenty-three million, six hundred fifty-four thousand, one hundred thirty-one".