9901245 has 32 divisors (see below), whose sum is σ = 16588800. Its totient is φ = 5037120.

The previous prime is 9901231. The next prime is 9901253. The reversal of 9901245 is 5421099.

It is a happy number.

It is not a de Polignac number, because 9901245 - 2⁷ = 9901117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49656 + ... + 49854.

It is an arithmetic number, because the mean of its divisors is an integer number (518400).

Almost surely, 2^9901245 is an apocalyptic number.

It is an amenable number.

9901245 is a deficient number, since it is larger than the sum of its proper divisors (6687555).

9901245 is a wasteful number, since it uses less digits than its factorization.

9901245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 9901245 is about 3146.6243817780. The cubic root of 9901245 is about 214.7319175358.

The spelling of 9901245 in words is "nine million, nine hundred one thousand, two hundred forty-five".