901661125 has 16 divisors (see below), whose sum is σ = 1127415744. Its totient is φ = 719955600.

The previous prime is 901661119. The next prime is 901661153. The reversal of 901661125 is 521166109.

It is not a de Polignac number, because 901661125 - 2⁷ = 901660997 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 15 ways as a sum of consecutive naturals, for example, 61782 + ... + 74968.

It is an arithmetic number, because the mean of its divisors is an integer number (70463484).

Almost surely, 2^901661125 is an apocalyptic number.

It is an amenable number.

901661125 is a deficient number, since it is larger than the sum of its proper divisors (225754619).

901661125 is a wasteful number, since it uses less digits than its factorization.

901661125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13749 (or 13739 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 901661125 is about 30027.6726537373. The cubic root of 901661125 is about 966.0830189972.

The spelling of 901661125 in words is "nine hundred one million, six hundred sixty-one thousand, one hundred twenty-five".