137142631 has 2 divisors, whose sum is σ = 137142632. Its totient is φ = 137142630.

The previous prime is 137142623. The next prime is 137142661. The reversal of 137142631 is 136241731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137142631 - 2³ = 137142623 is a prime.

It is a super-2 number, since 2×137142631² = 37616202475204322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 137142631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137142661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68571315 + 68571316.

It is an arithmetic number, because the mean of its divisors is an integer number (68571316).

Almost surely, 2^137142631 is an apocalyptic number.

137142631 is a deficient number, since it is larger than the sum of its proper divisors (1).

137142631 is an equidigital number, since it uses as much as digits as its factorization.

137142631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 28.

The square root of 137142631 is about 11710.7912200671. The cubic root of 137142631 is about 515.6925123036.

The spelling of 137142631 in words is "one hundred thirty-seven million, one hundred forty-two thousand, six hundred thirty-one".