201351137 has 4 divisors (see below), whose sum is σ = 216839700. Its totient is φ = 185862576.

The previous prime is 201351133. The next prime is 201351173. The reversal of 201351137 is 731153102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39450961 + 161900176 = 6281^2 + 12724^2 .

It is a cyclic number.

It is not a de Polignac number, because 201351137 - 2² = 201351133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201351133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7744262 + ... + 7744287.

It is an arithmetic number, because the mean of its divisors is an integer number (54209925).

Almost surely, 2^201351137 is an apocalyptic number.

It is an amenable number.

201351137 is a deficient number, since it is larger than the sum of its proper divisors (15488563).

201351137 is a wasteful number, since it uses less digits than its factorization.

201351137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15488562.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 201351137 is about 14189.8251222487. The cubic root of 201351137 is about 586.1175093508.

The spelling of 201351137 in words is "two hundred one million, three hundred fifty-one thousand, one hundred thirty-seven".