1137139788 has 24 divisors (see below), whose sum is σ = 2667079408. Its totient is φ = 377081856.

The previous prime is 1137139781. The next prime is 1137139789. The reversal of 1137139788 is 8879317311.

It is not an unprimeable number, because it can be changed into a prime (1137139781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243181 + ... + 247812.

Almost surely, 2^1137139788 is an apocalyptic number.

It is an amenable number.

1137139788 is an abundant number, since it is smaller than the sum of its proper divisors (1529939620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1137139788 is a wasteful number, since it uses less digits than its factorization.

1137139788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491193 (or 491191 counting only the distinct ones).

The product of its digits is 254016, while the sum is 48.

The square root of 1137139788 is about 33721.5033472709. The cubic root of 1137139788 is about 1043.7695392711.

The spelling of 1137139788 in words is "one billion, one hundred thirty-seven million, one hundred thirty-nine thousand, seven hundred eighty-eight".