20146275 has 72 divisors (see below), whose sum is σ = 40042080. Its totient is φ = 9630720.

The previous prime is 20146267. The next prime is 20146277. The reversal of 20146275 is 57264102.

20146275 is a `hidden beast` number, since 20 + 14 + 627 + 5 = 666.

It is not a de Polignac number, because 20146275 - 2³ = 20146267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20146277) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 87861 + ... + 88089.

It is an arithmetic number, because the mean of its divisors is an integer number (556140).

Almost surely, 2^20146275 is an apocalyptic number.

20146275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20146275 is a deficient number, since it is larger than the sum of its proper divisors (19895805).

20146275 is a wasteful number, since it uses less digits than its factorization.

20146275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 20146275 is about 4488.4602036779. The cubic root of 20146275 is about 272.1019072804.

The spelling of 20146275 in words is "twenty million, one hundred forty-six thousand, two hundred seventy-five".