37139087 has 2 divisors, whose sum is σ = 37139088. Its totient is φ = 37139086.

The previous prime is 37139059. The next prime is 37139131. The reversal of 37139087 is 78093173.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 37139087 - 2⁸ = 37138831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 37139087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37139287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18569543 + 18569544.

It is an arithmetic number, because the mean of its divisors is an integer number (18569544).

Almost surely, 2^37139087 is an apocalyptic number.

37139087 is a deficient number, since it is larger than the sum of its proper divisors (1).

37139087 is an equidigital number, since it uses as much as digits as its factorization.

37139087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 37139087 is about 6094.1846870603. The cubic root of 37139087 is about 333.6392024686.

The spelling of 37139087 in words is "thirty-seven million, one hundred thirty-nine thousand, eighty-seven".