20151414 has 12 divisors (see below), whose sum is σ = 43661436. Its totient is φ = 6717132.

The previous prime is 20151407. The next prime is 20151449. The reversal of 20151414 is 41415102.

20151414 is a `hidden beast` number, since 201 + 51 + 414 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1119523 = 20151414 / (2 + 0 + 1 + 5 + 1 + 4 + 1 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 559744 + ... + 559779.

It is an arithmetic number, because the mean of its divisors is an integer number (3638453).

Almost surely, 2^20151414 is an apocalyptic number.

20151414 is an abundant number, since it is smaller than the sum of its proper divisors (23510022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20151414 is a wasteful number, since it uses less digits than its factorization.

20151414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119531 (or 1119528 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 20151414 is about 4489.0326352122. The cubic root of 20151414 is about 272.1250416286.

Adding to 20151414 its reverse (41415102), we get a palindrome (61566516).

It can be divided in two parts, 201 and 51414, that added together give a palindrome (51615).

The spelling of 20151414 in words is "twenty million, one hundred fifty-one thousand, four hundred fourteen".