40125125 has 16 divisors (see below), whose sum is σ = 51807600. Its totient is φ = 30990400.

The previous prime is 40125103. The next prime is 40125139. The reversal of 40125125 is 52152104.

It can be written as a sum of positive squares in 8 ways, for example, as 21883684 + 18241441 = 4678^2 + 4271^2 .

It is not a de Polignac number, because 40125125 - 2²⁰ = 39076549 is a prime.

It is a super-2 number, since 2×40125125² = 3220051312531250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40125097 and 40125106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1910 + ... + 9159.

It is an arithmetic number, because the mean of its divisors is an integer number (3237975).

Almost surely, 2^40125125 is an apocalyptic number.

It is an amenable number.

40125125 is a deficient number, since it is larger than the sum of its proper divisors (11682475).

40125125 is a wasteful number, since it uses less digits than its factorization.

40125125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11113 (or 11103 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 40125125 is about 6334.4395963653. The cubic root of 40125125 is about 342.3514193830.

Adding to 40125125 its reverse (52152104), we get a palindrome (92277229).

The spelling of 40125125 in words is "forty million, one hundred twenty-five thousand, one hundred twenty-five".