189849925 has 6 divisors (see below), whose sum is σ = 235413938. Its totient is φ = 151879920.

The previous prime is 189849917. The next prime is 189849937. The reversal of 189849925 is 529948981.

It can be written as a sum of positive squares in 3 ways, for example, as 16641 + 189833284 = 129^2 + 13778^2 .

It is not a de Polignac number, because 189849925 - 2³ = 189849917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3796974 + ... + 3797023.

Almost surely, 2^189849925 is an apocalyptic number.

It is an amenable number.

189849925 is a deficient number, since it is larger than the sum of its proper divisors (45564013).

189849925 is an equidigital number, since it uses as much as digits as its factorization.

189849925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7594007 (or 7594002 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 55.

The square root of 189849925 is about 13778.6038842838. The cubic root of 189849925 is about 574.7383056162.

The spelling of 189849925 in words is "one hundred eighty-nine million, eight hundred forty-nine thousand, nine hundred twenty-five".