126265139 has 48 divisors (see below), whose sum is σ = 176523264. Its totient is φ = 87609600.

The previous prime is 126265129. The next prime is 126265141. The reversal of 126265139 is 931562621.

It is not a de Polignac number, because 126265139 - 2⁸ = 126264883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126265099 and 126265108.

It is not an unprimeable number, because it can be changed into a prime (126265129) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 403247 + ... + 403559.

It is an arithmetic number, because the mean of its divisors is an integer number (3677568).

Almost surely, 2^126265139 is an apocalyptic number.

126265139 is a deficient number, since it is larger than the sum of its proper divisors (50258125).

126265139 is a wasteful number, since it uses less digits than its factorization.

126265139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 375 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The square root of 126265139 is about 11236.7761835858. The cubic root of 126265139 is about 501.6811928456.

The spelling of 126265139 in words is "one hundred twenty-six million, two hundred sixty-five thousand, one hundred thirty-nine".