201150521 has 12 divisors (see below), whose sum is σ = 238108836. Its totient is φ = 168796320.

The previous prime is 201150491. The next prime is 201150539. The reversal of 201150521 is 125051102.

It can be written as a sum of positive squares in 2 ways, for example, as 12390400 + 188760121 = 3520^2 + 13739^2 .

It is not a de Polignac number, because 201150521 - 2¹⁴ = 201134137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201150521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201150541) 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, 62366 + ... + 65511.

It is an arithmetic number, because the mean of its divisors is an integer number (19842403).

Almost surely, 2^201150521 is an apocalyptic number.

It is an amenable number.

201150521 is a deficient number, since it is larger than the sum of its proper divisors (36958315).

201150521 is a wasteful number, since it uses less digits than its factorization.

201150521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127912 (or 127901 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 201150521 is about 14182.7543516765. The cubic root of 201150521 is about 585.9227854713.

The spelling of 201150521 in words is "two hundred one million, one hundred fifty thousand, five hundred twenty-one".