123874537 has 2 divisors, whose sum is σ = 123874538. Its totient is φ = 123874536.

The previous prime is 123874519. The next prime is 123874549. The reversal of 123874537 is 735478321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94887081 + 28987456 = 9741^2 + 5384^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123874537 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123874537.

It is not a weakly prime, because it can be changed into another prime (123874507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61937268 + 61937269.

It is an arithmetic number, because the mean of its divisors is an integer number (61937269).

Almost surely, 2^123874537 is an apocalyptic number.

It is an amenable number.

123874537 is a deficient number, since it is larger than the sum of its proper divisors (1).

123874537 is an equidigital number, since it uses as much as digits as its factorization.

123874537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 40.

The square root of 123874537 is about 11129.8938449565. The cubic root of 123874537 is about 498.4948562980.

The spelling of 123874537 in words is "one hundred twenty-three million, eight hundred seventy-four thousand, five hundred thirty-seven".