125144039 has 2 divisors, whose sum is σ = 125144040. Its totient is φ = 125144038.

The previous prime is 125144017. The next prime is 125144059. The reversal of 125144039 is 930441521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125144039 is a prime.

It is a super-2 number, since 2×125144039² = 31322060994467042, which contains 22 as substring.

It is equal to p_7117823 and since 125144039 and 7117823 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125144059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62572019 + 62572020.

It is an arithmetic number, because the mean of its divisors is an integer number (62572020).

Almost surely, 2^125144039 is an apocalyptic number.

125144039 is a deficient number, since it is larger than the sum of its proper divisors (1).

125144039 is an equidigital number, since it uses as much as digits as its factorization.

125144039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 125144039 is about 11186.7796527866. The cubic root of 125144039 is about 500.1919782792.

The spelling of 125144039 in words is "one hundred twenty-five million, one hundred forty-four thousand, thirty-nine".