164140925 has 12 divisors (see below), whose sum is σ = 219191700. Its totient is φ = 121211520.

The previous prime is 164140919. The next prime is 164140969. The reversal of 164140925 is 529041461.

It can be written as a sum of positive squares in 6 ways, for example, as 27227524 + 136913401 = 5218^2 + 11701^2 .

It is not a de Polignac number, because 164140925 - 2⁶ = 164140861 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 164140891 and 164140900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252200 + ... + 252849.

It is an arithmetic number, because the mean of its divisors is an integer number (18265975).

Almost surely, 2^164140925 is an apocalyptic number.

It is an amenable number.

164140925 is a deficient number, since it is larger than the sum of its proper divisors (55050775).

164140925 is a wasteful number, since it uses less digits than its factorization.

164140925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505072 (or 505067 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 164140925 is about 12811.7494902141. The cubic root of 164140925 is about 547.5271074893.

The spelling of 164140925 in words is "one hundred sixty-four million, one hundred forty thousand, nine hundred twenty-five".