1251130116 has 48 divisors (see below), whose sum is σ = 3017853440. Its totient is φ = 403004160.

The previous prime is 1251130063. The next prime is 1251130117. The reversal of 1251130116 is 6110311521.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1251130092 and 1251130101.

It is not an unprimeable number, because it can be changed into a prime (1251130117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306360 + ... + 310416.

Almost surely, 2^1251130116 is an apocalyptic number.

It is an amenable number.

1251130116 is an abundant number, since it is smaller than the sum of its proper divisors (1766723324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1251130116 is a wasteful number, since it uses less digits than its factorization.

1251130116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4924 (or 4922 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 1251130116 is about 35371.3177023418. The cubic root of 1251130116 is about 1077.5418820469.

Adding to 1251130116 its reverse (6110311521), we get a palindrome (7361441637).

The spelling of 1251130116 in words is "one billion, two hundred fifty-one million, one hundred thirty thousand, one hundred sixteen".