123936427 has 2 divisors, whose sum is σ = 123936428. Its totient is φ = 123936426.

The previous prime is 123936391. The next prime is 123936457. The reversal of 123936427 is 724639321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123936427 - 2¹¹ = 123934379 is a prime.

It is not a weakly prime, because it can be changed into another prime (123936457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61968213 + 61968214.

It is an arithmetic number, because the mean of its divisors is an integer number (61968214).

Almost surely, 2^123936427 is an apocalyptic number.

123936427 is a deficient number, since it is larger than the sum of its proper divisors (1).

123936427 is an equidigital number, since it uses as much as digits as its factorization.

123936427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 37.

The square root of 123936427 is about 11132.6738477331. The cubic root of 123936427 is about 498.5778615461.

The spelling of 123936427 in words is "one hundred twenty-three million, nine hundred thirty-six thousand, four hundred twenty-seven".