251134130 has 16 divisors (see below), whose sum is σ = 486814104. Its totient is φ = 92726400.

The previous prime is 251134129. The next prime is 251134139. The reversal of 251134130 is 31431152.

It can be written as a sum of positive squares in 4 ways, for example, as 80335369 + 170798761 = 8963^2 + 13069^2 .

It is not an unprimeable number, because it can be changed into a prime (251134139) 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, 965771 + ... + 966030.

Almost surely, 2^251134130 is an apocalyptic number.

251134130 is a deficient number, since it is larger than the sum of its proper divisors (235679974).

251134130 is a wasteful number, since it uses less digits than its factorization.

251134130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931821.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 251134130 is about 15847.2120576460. The cubic root of 251134130 is about 630.9116975632.

Adding to 251134130 its reverse (31431152), we get a palindrome (282565282).

The spelling of 251134130 in words is "two hundred fifty-one million, one hundred thirty-four thousand, one hundred thirty".