201257512 has 8 divisors (see below), whose sum is σ = 377357850. Its totient is φ = 100628752.

The previous prime is 201257503. The next prime is 201257579. The reversal of 201257512 is 215752102.

201257512 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 158407396 + 42850116 = 12586^2 + 6546^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×201257512² = 81009172272860288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12578587 + ... + 12578602.

Almost surely, 2^201257512 is an apocalyptic number.

It is an amenable number.

201257512 is a deficient number, since it is larger than the sum of its proper divisors (176100338).

201257512 is a wasteful number, since it uses less digits than its factorization.

201257512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25157195 (or 25157191 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 201257512 is about 14186.5257198512. The cubic root of 201257512 is about 586.0266502341.

The spelling of 201257512 in words is "two hundred one million, two hundred fifty-seven thousand, five hundred twelve".