123937427 has 2 divisors, whose sum is σ = 123937428. Its totient is φ = 123937426.

The previous prime is 123937369. The next prime is 123937439. The reversal of 123937427 is 724739321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123937427 - 2²² = 119743123 is a prime.

It is a super-2 number, since 2×123937427² = 30720971622760658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123937477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61968713 + 61968714.

It is an arithmetic number, because the mean of its divisors is an integer number (61968714).

Almost surely, 2^123937427 is an apocalyptic number.

123937427 is a deficient number, since it is larger than the sum of its proper divisors (1).

123937427 is an equidigital number, since it uses as much as digits as its factorization.

123937427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 38.

The square root of 123937427 is about 11132.7187604825. The cubic root of 123937427 is about 498.5792024930.

The spelling of 123937427 in words is "one hundred twenty-three million, nine hundred thirty-seven thousand, four hundred twenty-seven".