20141931 has 8 divisors (see below), whose sum is σ = 27480640. Its totient is φ = 13115592.

The previous prime is 20141929. The next prime is 20141939. The reversal of 20141931 is 13914102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20141931 - 2¹ = 20141929 is a prime.

It is a super-2 number, since 2×20141931² = 811394768817522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20141898 and 20141907.

It is not an unprimeable number, because it can be changed into a prime (20141939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77941 + ... + 78198.

It is an arithmetic number, because the mean of its divisors is an integer number (3435080).

Almost surely, 2^20141931 is an apocalyptic number.

20141931 is a deficient number, since it is larger than the sum of its proper divisors (7338709).

20141931 is a wasteful number, since it uses less digits than its factorization.

20141931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156185.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 20141931 is about 4487.9762699907. The cubic root of 20141931 is about 272.0823487326.

The spelling of 20141931 in words is "twenty million, one hundred forty-one thousand, nine hundred thirty-one".