37975213 has 2 divisors, whose sum is σ = 37975214. Its totient is φ = 37975212.

The previous prime is 37975211. The next prime is 37975237. The reversal of 37975213 is 31257973.

37975213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37908649 + 66564 = 6157^2 + 258^2 .

It is an emirp because it is prime and its reverse (31257973) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 37975213 - 2¹ = 37975211 is a prime.

Together with 37975211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37975211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18987606 + 18987607.

It is an arithmetic number, because the mean of its divisors is an integer number (18987607).

Almost surely, 2^37975213 is an apocalyptic number.

It is an amenable number.

37975213 is a deficient number, since it is larger than the sum of its proper divisors (1).

37975213 is an equidigital number, since it uses as much as digits as its factorization.

37975213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39690, while the sum is 37.

The square root of 37975213 is about 6162.4031838237. The cubic root of 37975213 is about 336.1244254079.

The spelling of 37975213 in words is "thirty-seven million, nine hundred seventy-five thousand, two hundred thirteen".