37142531 has 2 divisors, whose sum is σ = 37142532. Its totient is φ = 37142530.

The previous prime is 37142519. The next prime is 37142537. The reversal of 37142531 is 13524173.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37142531 is a prime.

It is a super-2 number, since 2×37142531² = 2759135218171922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 37142531.

It is not a weakly prime, because it can be changed into another prime (37142537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18571265 + 18571266.

It is an arithmetic number, because the mean of its divisors is an integer number (18571266).

Almost surely, 2^37142531 is an apocalyptic number.

37142531 is a deficient number, since it is larger than the sum of its proper divisors (1).

37142531 is an equidigital number, since it uses as much as digits as its factorization.

37142531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 26.

The square root of 37142531 is about 6094.4672449690. The cubic root of 37142531 is about 333.6495152144.

It can be divided in two parts, 37142 and 531, that added together give a palindrome (37673).

The spelling of 37142531 in words is "thirty-seven million, one hundred forty-two thousand, five hundred thirty-one".