20214975 has 48 divisors (see below), whose sum is σ = 36961920. Its totient is φ = 9667200.

The previous prime is 20214959. The next prime is 20214977. The reversal of 20214975 is 57941202.

It is not a de Polignac number, because 20214975 - 2⁴ = 20214959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20214977) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88161 + ... + 88389.

It is an arithmetic number, because the mean of its divisors is an integer number (770040).

Almost surely, 2^20214975 is an apocalyptic number.

20214975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20214975 is a deficient number, since it is larger than the sum of its proper divisors (16746945).

20214975 is a wasteful number, since it uses less digits than its factorization.

20214975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 20214975 is about 4496.1066490910. The cubic root of 20214975 is about 272.4108509546.

It can be divided in two parts, 2021 and 4975, that added together give a palindrome (6996).

The spelling of 20214975 in words is "twenty million, two hundred fourteen thousand, nine hundred seventy-five".