9201231 has 12 divisors (see below), whose sum is σ = 14313208. Its totient is φ = 5662224.

The previous prime is 9201221. The next prime is 9201253. The reversal of 9201231 is 1321029.

It is a happy number.

9201231 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9201231 - 2¹⁵ = 9168463 is a prime.

It is a super-2 number, since 2×9201231² = 169325303830722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9201211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39205 + ... + 39438.

Almost surely, 2^9201231 is an apocalyptic number.

9201231 is a deficient number, since it is larger than the sum of its proper divisors (5111977).

9201231 is a wasteful number, since it uses less digits than its factorization.

9201231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78662 (or 78659 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 9201231 is about 3033.3530951737. The cubic root of 9201231 is about 209.5472559120.

The spelling of 9201231 in words is "nine million, two hundred one thousand, two hundred thirty-one".