400107125 has 16 divisors (see below), whose sum is σ = 544729536. Its totient is φ = 290986000.

The previous prime is 400107107. The next prime is 400107161. The reversal of 400107125 is 521701004.

It is not a de Polignac number, because 400107125 - 2¹⁶ = 400041589 is a prime.

It is a super-2 number, since 2×400107125² = 320171422951531250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400107097 and 400107106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144119 + ... + 146868.

It is an arithmetic number, because the mean of its divisors is an integer number (34045596).

Almost surely, 2^400107125 is an apocalyptic number.

It is an amenable number.

400107125 is a deficient number, since it is larger than the sum of its proper divisors (144622411).

400107125 is a wasteful number, since it uses less digits than its factorization.

400107125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291013 (or 291003 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 400107125 is about 20002.6779457152. The cubic root of 400107125 is about 736.8720691695.

Adding to 400107125 its reverse (521701004), we get a palindrome (921808129).

The spelling of 400107125 in words is "four hundred million, one hundred seven thousand, one hundred twenty-five".