1137728649 has 16 divisors (see below), whose sum is σ = 1584720000. Its totient is φ = 724686336.

The previous prime is 1137728597. The next prime is 1137728653. The reversal of 1137728649 is 9468277311.

It is a happy number.

It is not a de Polignac number, because 1137728649 - 2¹³ = 1137720457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1137728598 and 1137728607.

It is not an unprimeable number, because it can be changed into a prime (1137728659) 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 15 ways as a sum of consecutive naturals, for example, 55227 + ... + 72975.

It is an arithmetic number, because the mean of its divisors is an integer number (99045000).

Almost surely, 2^1137728649 is an apocalyptic number.

It is an amenable number.

1137728649 is a deficient number, since it is larger than the sum of its proper divisors (446991351).

1137728649 is a wasteful number, since it uses less digits than its factorization.

1137728649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18704.

The product of its digits is 508032, while the sum is 48.

The square root of 1137728649 is about 33730.2334560554. The cubic root of 1137728649 is about 1043.9496781062.

The spelling of 1137728649 in words is "one billion, one hundred thirty-seven million, seven hundred twenty-eight thousand, six hundred forty-nine".