190995625 has 10 divisors (see below), whose sum is σ = 238668914. Its totient is φ = 152796000.

The previous prime is 190995617. The next prime is 190995641. The reversal of 190995625 is 526599091.

190995625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 139428864 + 51566761 = 11808^2 + 7181^2 .

It is not a de Polignac number, because 190995625 - 2³ = 190995617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 152172 + ... + 153421.

Almost surely, 2^190995625 is an apocalyptic number.

It is an amenable number.

190995625 is a deficient number, since it is larger than the sum of its proper divisors (47673289).

190995625 is an frugal number, since it uses more digits than its factorization.

190995625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305613 (or 305598 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 46.

The square root of 190995625 is about 13820.1166782339. The cubic root of 190995625 is about 575.8921249000.

The spelling of 190995625 in words is "one hundred ninety million, nine hundred ninety-five thousand, six hundred twenty-five".