37139138 has 8 divisors (see below), whose sum is σ = 55734588. Its totient is φ = 18560944.

The previous prime is 37139131. The next prime is 37139149. The reversal of 37139138 is 83193173.

It can be written as a sum of positive squares in 2 ways, for example, as 28976689 + 8162449 = 5383^2 + 2857^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 37139098 and 37139107.

It is not an unprimeable number, because it can be changed into a prime (37139131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6020 + ... + 10512.

Almost surely, 2^37139138 is an apocalyptic number.

37139138 is a deficient number, since it is larger than the sum of its proper divisors (18595450).

37139138 is a wasteful number, since it uses less digits than its factorization.

37139138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8628.

The product of its digits is 13608, while the sum is 35.

The square root of 37139138 is about 6094.1888713757. The cubic root of 37139138 is about 333.6393551881.

The spelling of 37139138 in words is "thirty-seven million, one hundred thirty-nine thousand, one hundred thirty-eight".