201251313 has 12 divisors (see below), whose sum is σ = 291412420. Its totient is φ = 133837056.

The previous prime is 201251299. The next prime is 201251327. The reversal of 201251313 is 313152102.

It is an interprime number because it is at equal distance from previous prime (201251299) and next prime (201251327).

It can be written as a sum of positive squares in 2 ways, for example, as 107993664 + 93257649 = 10392^2 + 9657^2 .

It is not a de Polignac number, because 201251313 - 2⁹ = 201250801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201251353) 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, 23656 + ... + 31017.

Almost surely, 2^201251313 is an apocalyptic number.

It is an amenable number.

201251313 is a deficient number, since it is larger than the sum of its proper divisors (90161107).

201251313 is a wasteful number, since it uses less digits than its factorization.

201251313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55088 (or 55085 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 201251313 is about 14186.3072362049. The cubic root of 201251313 is about 586.0206333713.

The spelling of 201251313 in words is "two hundred one million, two hundred fifty-one thousand, three hundred thirteen".