130286736 has 30 divisors (see below), whose sum is σ = 364622310. Its totient is φ = 43428864.

The previous prime is 130286713. The next prime is 130286771. The reversal of 130286736 is 637682031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 107246736 + 23040000 = 10356^2 + 4800^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 130286736.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 452241 + ... + 452528.

It is an arithmetic number, because the mean of its divisors is an integer number (12154077).

Almost surely, 2^130286736 is an apocalyptic number.

130286736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

130286736 is an abundant number, since it is smaller than the sum of its proper divisors (234335574).

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

130286736 is a wasteful number, since it uses less digits than its factorization.

130286736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904783 (or 904774 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 130286736 is about 11414.3215304283. The cubic root of 130286736 is about 506.9518762021.

The spelling of 130286736 in words is "one hundred thirty million, two hundred eighty-six thousand, seven hundred thirty-six".