36138925 has 6 divisors (see below), whose sum is σ = 44812298. Its totient is φ = 28911120.

The previous prime is 36138887. The next prime is 36138941. The reversal of 36138925 is 52983163.

It can be written as a sum of positive squares in 3 ways, for example, as 114921 + 36024004 = 339^2 + 6002^2 .

It is not a de Polignac number, because 36138925 - 2¹⁹ = 35614637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 722754 + ... + 722803.

Almost surely, 2^36138925 is an apocalyptic number.

It is an amenable number.

36138925 is a deficient number, since it is larger than the sum of its proper divisors (8673373).

36138925 is a wasteful number, since it uses less digits than its factorization.

36138925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445567 (or 1445562 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 36138925 is about 6011.5659357608. The cubic root of 36138925 is about 330.6169206612.

The spelling of 36138925 in words is "thirty-six million, one hundred thirty-eight thousand, nine hundred twenty-five".