251013201 has 8 divisors (see below), whose sum is σ = 339269280. Its totient is φ = 165049632.

The previous prime is 251013173. The next prime is 251013239. The reversal of 251013201 is 102310152.

251013201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 251013201 - 2⁷ = 251013073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (251013101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572871 + ... + 573308.

It is an arithmetic number, because the mean of its divisors is an integer number (42408660).

Almost surely, 2^251013201 is an apocalyptic number.

It is an amenable number.

251013201 is a deficient number, since it is larger than the sum of its proper divisors (88256079).

251013201 is a wasteful number, since it uses less digits than its factorization.

251013201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146255.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 251013201 is about 15843.3961321429. The cubic root of 251013201 is about 630.8104133475.

Adding to 251013201 its reverse (102310152), we get a palindrome (353323353).

The spelling of 251013201 in words is "two hundred fifty-one million, thirteen thousand, two hundred one".