130236756 has 48 divisors (see below), whose sum is σ = 328536768. Its totient is φ = 39916800.

The previous prime is 130236751. The next prime is 130236763. The reversal of 130236756 is 657632031.

It is a super-2 number, since 2×130236756² = 33923225226807072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130236751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42351 + ... + 45321.

It is an arithmetic number, because the mean of its divisors is an integer number (6844516).

Almost surely, 2^130236756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130236756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164268384).

130236756 is an abundant number, since it is smaller than the sum of its proper divisors (198300012).

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

130236756 is a wasteful number, since it uses less digits than its factorization.

130236756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3272 (or 3270 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 130236756 is about 11412.1319655882. The cubic root of 130236756 is about 506.8870430600.

Adding to 130236756 its reverse (657632031), we get a palindrome (787868787).

The spelling of 130236756 in words is "one hundred thirty million, two hundred thirty-six thousand, seven hundred fifty-six".