1137172649 has 4 divisors (see below), whose sum is σ = 1137243264. Its totient is φ = 1137102036.

The previous prime is 1137172627. The next prime is 1137172651. The reversal of 1137172649 is 9462717311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1137172649 - 2¹⁶ = 1137107113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1137172609) 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, 1964 + ... + 47730.

It is an arithmetic number, because the mean of its divisors is an integer number (284310816).

Almost surely, 2^1137172649 is an apocalyptic number.

It is an amenable number.

1137172649 is a deficient number, since it is larger than the sum of its proper divisors (70615).

1137172649 is an equidigital number, since it uses as much as digits as its factorization.

1137172649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70614.

The product of its digits is 63504, while the sum is 41.

The square root of 1137172649 is about 33721.9905847801. The cubic root of 1137172649 is about 1043.7795934382.

The spelling of 1137172649 in words is "one billion, one hundred thirty-seven million, one hundred seventy-two thousand, six hundred forty-nine".