9201381 has 24 divisors (see below), whose sum is σ = 14549184. Its totient is φ = 5066880.

The previous prime is 9201341. The next prime is 9201391. The reversal of 9201381 is 1831029.

9201381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9201381 - 2⁶ = 9201317 is a prime.

It is a super-2 number, since 2×9201381² = 169330824614322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9201341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17401 + ... + 17921.

It is an arithmetic number, because the mean of its divisors is an integer number (606216).

Almost surely, 2^9201381 is an apocalyptic number.

It is an amenable number.

9201381 is a deficient number, since it is larger than the sum of its proper divisors (5347803).

9201381 is a wasteful number, since it uses less digits than its factorization.

9201381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 9201381 is about 3033.3778201866. The cubic root of 9201381 is about 209.5483945973.

The spelling of 9201381 in words is "nine million, two hundred one thousand, three hundred eighty-one".