14631381 has 16 divisors (see below), whose sum is σ = 22619520. Its totient is φ = 9329760.

The previous prime is 14631367. The next prime is 14631433. The reversal of 14631381 is 18313641.

It is not a de Polignac number, because 14631381 - 2¹⁴ = 14614997 is a prime.

It is a super-2 number, since 2×14631381² = 428154619934322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14631361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11160 + ... + 12401.

It is an arithmetic number, because the mean of its divisors is an integer number (1413720).

Almost surely, 2^14631381 is an apocalyptic number.

It is an amenable number.

14631381 is a deficient number, since it is larger than the sum of its proper divisors (7988139).

14631381 is a wasteful number, since it uses less digits than its factorization.

14631381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23593 (or 23587 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 14631381 is about 3825.0988222528. The cubic root of 14631381 is about 244.5842233083.

The spelling of 14631381 in words is "fourteen million, six hundred thirty-one thousand, three hundred eighty-one".