1238125964 has 12 divisors (see below), whose sum is σ = 2199060024. Its totient is φ = 609823104.

The previous prime is 1238125943. The next prime is 1238125969. The reversal of 1238125964 is 4695218321.

It is not an unprimeable number, because it can be changed into a prime (1238125969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2309669 + ... + 2310204.

It is an arithmetic number, because the mean of its divisors is an integer number (183255002).

Almost surely, 2^1238125964 is an apocalyptic number.

It is an amenable number.

1238125964 is a deficient number, since it is larger than the sum of its proper divisors (960934060).

1238125964 is a wasteful number, since it uses less digits than its factorization.

1238125964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4619944 (or 4619942 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 1238125964 is about 35187.0141387416. The cubic root of 1238125964 is about 1073.7955759703.

The spelling of 1238125964 in words is "one billion, two hundred thirty-eight million, one hundred twenty-five thousand, nine hundred sixty-four".