1137949689 has 16 divisors (see below), whose sum is σ = 1649939328. Its totient is φ = 694708992.

The previous prime is 1137949661. The next prime is 1137949717. The reversal of 1137949689 is 9869497311.

It is an interprime number because it is at equal distance from previous prime (1137949661) and next prime (1137949717).

It is not a de Polignac number, because 1137949689 - 2²⁰ = 1136901113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1137949609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299637 + ... + 303410.

It is an arithmetic number, because the mean of its divisors is an integer number (103121208).

Almost surely, 2^1137949689 is an apocalyptic number.

It is an amenable number.

1137949689 is a deficient number, since it is larger than the sum of its proper divisors (511989639).

1137949689 is a wasteful number, since it uses less digits than its factorization.

1137949689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603104.

The product of its digits is 2939328, while the sum is 57.

The square root of 1137949689 is about 33733.5098826078. The cubic root of 1137949689 is about 1044.0172805451.

The spelling of 1137949689 in words is "one billion, one hundred thirty-seven million, nine hundred forty-nine thousand, six hundred eighty-nine".