9901250 has 30 divisors (see below), whose sum is σ = 18769773. Its totient is φ = 3916000.

The previous prime is 9901231. The next prime is 9901253. The reversal of 9901250 is 521099.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3301489 + 6599761 = 1817^2 + 2569^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2225.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9901253) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 111206 + ... + 111294.

Almost surely, 2^9901250 is an apocalyptic number.

9901250 is a deficient number, since it is larger than the sum of its proper divisors (8868523).

9901250 is an frugal number, since it uses more digits than its factorization.

9901250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 9901250 is about 3146.6251762801. The cubic root of 9901250 is about 214.7319536814.

The spelling of 9901250 in words is "nine million, nine hundred one thousand, two hundred fifty".