36121725 has 18 divisors (see below), whose sum is σ = 64698426. Its totient is φ = 19264800.

The previous prime is 36121703. The next prime is 36121739. The reversal of 36121725 is 52712163.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3426201 + 32695524 = 1851^2 + 5718^2 .

It is not a de Polignac number, because 36121725 - 2⁸ = 36121469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 80046 + ... + 80495.

It is an arithmetic number, because the mean of its divisors is an integer number (3594357).

Almost surely, 2^36121725 is an apocalyptic number.

It is an amenable number.

36121725 is a deficient number, since it is larger than the sum of its proper divisors (28576701).

36121725 is a wasteful number, since it uses less digits than its factorization.

36121725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160557 (or 160549 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 36121725 is about 6010.1351898273. The cubic root of 36121725 is about 330.5644609432.

Adding to 36121725 its reverse (52712163), we get a palindrome (88833888).

The spelling of 36121725 in words is "thirty-six million, one hundred twenty-one thousand, seven hundred twenty-five".