201356451 has 24 divisors (see below), whose sum is σ = 295098336. Its totient is φ = 132289920.

The previous prime is 201356443. The next prime is 201356459. The reversal of 201356451 is 154653102.

201356451 is a `hidden beast` number, since 2 + 0 + 13 + 5 + 645 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (201356443) and next prime (201356459).

It is not a de Polignac number, because 201356451 - 2³ = 201356443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201356459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 260101 + ... + 260873.

It is an arithmetic number, because the mean of its divisors is an integer number (12295764).

Almost surely, 2^201356451 is an apocalyptic number.

201356451 is a deficient number, since it is larger than the sum of its proper divisors (93741885).

201356451 is a wasteful number, since it uses less digits than its factorization.

201356451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163 (or 1160 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 201356451 is about 14190.0123678593. The cubic root of 201356451 is about 586.1226655191.

The spelling of 201356451 in words is "two hundred one million, three hundred fifty-six thousand, four hundred fifty-one".