251032130 has 16 divisors (see below), whose sum is σ = 452068344. Its totient is φ = 100366080.

The previous prime is 251032127. The next prime is 251032153. The reversal of 251032130 is 31230152.

251032130 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 4 ways, for example, as 243141649 + 7890481 = 15593^2 + 2809^2 .

It is a super-3 number, since 3×251032130³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 251032099 and 251032108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23900 + ... + 32760.

Almost surely, 2^251032130 is an apocalyptic number.

251032130 is a deficient number, since it is larger than the sum of its proper divisors (201036214).

251032130 is a wasteful number, since it uses less digits than its factorization.

251032130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11701.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 251032130 is about 15843.9934991151. The cubic root of 251032130 is about 630.8262694992.

Adding to 251032130 its reverse (31230152), we get a palindrome (282262282).

The spelling of 251032130 in words is "two hundred fifty-one million, thirty-two thousand, one hundred thirty".