20141631 has 12 divisors (see below), whose sum is σ = 30097080. Its totient is φ = 12964560.

The previous prime is 20141623. The next prime is 20141657. The reversal of 20141631 is 13614102.

It is a happy number.

20141631 is a `hidden beast` number, since 20 + 14 + 1 + 631 = 666.

It is not a de Polignac number, because 20141631 - 2³ = 20141623 is a prime.

It is a super-2 number, since 2×20141631² = 811370598680322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20141831) 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, 38325 + ... + 38846.

It is an arithmetic number, because the mean of its divisors is an integer number (2508090).

Almost surely, 2^20141631 is an apocalyptic number.

20141631 is a deficient number, since it is larger than the sum of its proper divisors (9955449).

20141631 is a wasteful number, since it uses less digits than its factorization.

20141631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77206 (or 77203 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 20141631 is about 4487.9428472297. The cubic root of 20141631 is about 272.0809979003.

Adding to 20141631 its reverse (13614102), we get a palindrome (33755733).

The spelling of 20141631 in words is "twenty million, one hundred forty-one thousand, six hundred thirty-one".