190625631 has 24 divisors (see below), whose sum is σ = 298401840. Its totient is φ = 107920512.

The previous prime is 190625621. The next prime is 190625639. The reversal of 190625631 is 136526091.

It is a happy number.

It is not a de Polignac number, because 190625631 - 2⁵ = 190625599 is a prime.

It is a super-2 number, since 2×190625631² = 72676262388296322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 190625592 and 190625601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190625639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10075 + ... + 21971.

It is an arithmetic number, because the mean of its divisors is an integer number (12433410).

Almost surely, 2^190625631 is an apocalyptic number.

190625631 is a deficient number, since it is larger than the sum of its proper divisors (107776209).

190625631 is a wasteful number, since it uses less digits than its factorization.

190625631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12023 (or 12016 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 190625631 is about 13806.7241226875. The cubic root of 190625631 is about 575.5200145113.

The spelling of 190625631 in words is "one hundred ninety million, six hundred twenty-five thousand, six hundred thirty-one".