913381 has 4 divisors (see below), whose sum is σ = 1043872. Its totient is φ = 782892.

The previous prime is 913373. The next prime is 913397. The reversal of 913381 is 183319.

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 913381 - 2³ = 913373 is a prime.

It is a super-2 number, since 2×913381² = 1668529702322, which contains 22 as substring.

It is a Duffinian number.

913381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (913321) 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, 65235 + ... + 65248.

It is an arithmetic number, because the mean of its divisors is an integer number (260968).

2⁹¹³³⁸¹ is an apocalyptic number.

It is an amenable number.

913381 is a deficient number, since it is larger than the sum of its proper divisors (130491).

913381 is a wasteful number, since it uses less digits than its factorization.

913381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130490.

The product of its digits is 648, while the sum is 25.

The square root of 913381 is about 955.7096839522. The cubic root of 913381 is about 97.0250758849.

The spelling of 913381 in words is "nine hundred thirteen thousand, three hundred eighty-one".