9901249 has 4 divisors (see below), whose sum is σ = 9953280. Its totient is φ = 9849220.

The previous prime is 9901231. The next prime is 9901253. The reversal of 9901249 is 9421099.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9901249 - 2¹³ = 9893057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9901219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25729 + ... + 26110.

It is an arithmetic number, because the mean of its divisors is an integer number (2488320).

Almost surely, 2^9901249 is an apocalyptic number.

It is an amenable number.

9901249 is a deficient number, since it is larger than the sum of its proper divisors (52031).

9901249 is a wasteful number, since it uses less digits than its factorization.

9901249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52030.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 9901249 is about 3146.6250173797. The cubic root of 9901249 is about 214.7319464523.

The spelling of 9901249 in words is "nine million, nine hundred one thousand, two hundred forty-nine".