1131640602637 has 2 divisors, whose sum is σ = 1131640602638. Its totient is φ = 1131640602636.

The previous prime is 1131640602611. The next prime is 1131640602727. The reversal of 1131640602637 is 7362060461311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 827406725161 + 304233877476 = 909619^2 + 551574^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131640602637 - 2²⁷ = 1131506384909 is a prime.

It is a super-2 number, since 2×1131640602637² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1131640602637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131640600637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565820301318 + 565820301319.

It is an arithmetic number, because the mean of its divisors is an integer number (565820301319).

Almost surely, 2^{1131640602637} is an apocalyptic number.

It is an amenable number.

1131640602637 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131640602637 is an equidigital number, since it uses as much as digits as its factorization.

1131640602637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 1131640602637 in words is "one trillion, one hundred thirty-one billion, six hundred forty million, six hundred two thousand, six hundred thirty-seven".