1131712137 has 6 divisors (see below), whose sum is σ = 1634695322. Its totient is φ = 754474752.

The previous prime is 1131712103. The next prime is 1131712139. The reversal of 1131712137 is 7312171311.

It can be written as a sum of positive squares in only one way, i.e., 1028100096 + 103612041 = 32064^2 + 10179^2 .

It is not a de Polignac number, because 1131712137 - 2²⁰ = 1130663561 is a prime.

It is a super-2 number, since 2×1131712137² = 2561544722066213538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1131712137.

It is not an unprimeable number, because it can be changed into a prime (1131712139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62872888 + ... + 62872905.

Almost surely, 2^1131712137 is an apocalyptic number.

It is an amenable number.

1131712137 is a deficient number, since it is larger than the sum of its proper divisors (502983185).

1131712137 is a wasteful number, since it uses less digits than its factorization.

1131712137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125745799 (or 125745796 counting only the distinct ones).

The product of its digits is 882, while the sum is 27.

The square root of 1131712137 is about 33640.9294907260. The cubic root of 1131712137 is about 1042.1062274196.

Adding to 1131712137 its reverse (7312171311), we get a palindrome (8443883448).

The spelling of 1131712137 in words is "one billion, one hundred thirty-one million, seven hundred twelve thousand, one hundred thirty-seven".