16144925 has 12 divisors (see below), whose sum is σ = 20070516. Its totient is φ = 12883200.

The previous prime is 16144901. The next prime is 16144957. The reversal of 16144925 is 52944161.

It can be written as a sum of positive squares in 6 ways, for example, as 1229881 + 14915044 = 1109^2 + 3862^2 .

It is not a de Polignac number, because 16144925 - 2⁶ = 16144861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16144891 and 16144900.

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, 16037 + ... + 17013.

It is an arithmetic number, because the mean of its divisors is an integer number (1672543).

Almost surely, 2^16144925 is an apocalyptic number.

It is an amenable number.

16144925 is a deficient number, since it is larger than the sum of its proper divisors (3925591).

16144925 is an equidigital number, since it uses as much as digits as its factorization.

16144925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648 (or 1643 counting only the distinct ones).

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

The square root of 16144925 is about 4018.0747877559. The cubic root of 16144925 is about 252.7427329574.

The spelling of 16144925 in words is "sixteen million, one hundred forty-four thousand, nine hundred twenty-five".