189429925 has 6 divisors (see below), whose sum is σ = 234893138. Its totient is φ = 151543920.

The previous prime is 189429893. The next prime is 189429959. The reversal of 189429925 is 529924981.

189429925 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 3 ways, for example, as 50708641 + 138721284 = 7121^2 + 11778^2 .

It is not a de Polignac number, because 189429925 - 2⁵ = 189429893 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, 3788574 + ... + 3788623.

Almost surely, 2^189429925 is an apocalyptic number.

It is an amenable number.

189429925 is a deficient number, since it is larger than the sum of its proper divisors (45463213).

189429925 is an equidigital number, since it uses as much as digits as its factorization.

189429925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7577207 (or 7577202 counting only the distinct ones).

The product of its digits is 466560, while the sum is 49.

The square root of 189429925 is about 13763.3544239767. The cubic root of 189429925 is about 574.3141665418.

The spelling of 189429925 in words is "one hundred eighty-nine million, four hundred twenty-nine thousand, nine hundred twenty-five".