40102125 has 32 divisors (see below), whose sum is σ = 76267776. Its totient is φ = 18331200.

The previous prime is 40102109. The next prime is 40102147. The reversal of 40102125 is 52120104.

It is not a de Polignac number, because 40102125 - 2⁴ = 40102109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5014 + ... + 10263.

It is an arithmetic number, because the mean of its divisors is an integer number (2383368).

Almost surely, 2^40102125 is an apocalyptic number.

It is an amenable number.

40102125 is a deficient number, since it is larger than the sum of its proper divisors (36165651).

40102125 is a wasteful number, since it uses less digits than its factorization.

40102125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15302 (or 15292 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 40102125 is about 6332.6238637708. The cubic root of 40102125 is about 342.2859941445.

Adding to 40102125 its reverse (52120104), we get a palindrome (92222229).

The spelling of 40102125 in words is "forty million, one hundred two thousand, one hundred twenty-five".