201172563 has 12 divisors (see below), whose sum is σ = 291218928. Its totient is φ = 133821360.

The previous prime is 201172541. The next prime is 201172613. The reversal of 201172563 is 365271102.

It is a happy number.

201172563 is a `hidden beast` number, since 20 + 11 + 72 + 563 = 666.

It is not a de Polignac number, because 201172563 - 2²¹ = 199075411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201172523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20095 + ... + 28392.

It is an arithmetic number, because the mean of its divisors is an integer number (24268244).

Almost surely, 2^201172563 is an apocalyptic number.

201172563 is a deficient number, since it is larger than the sum of its proper divisors (90046365).

201172563 is a wasteful number, since it uses less digits than its factorization.

201172563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48954 (or 48951 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 201172563 is about 14183.5314008888. The cubic root of 201172563 is about 585.9441864240.

The spelling of 201172563 in words is "two hundred one million, one hundred seventy-two thousand, five hundred sixty-three".