130991248 has 40 divisors (see below), whose sum is σ = 261775160. Its totient is φ = 63452160.

The previous prime is 130991167. The next prime is 130991251. The reversal of 130991248 is 842199031.

It can be written as a sum of positive squares in 4 ways, for example, as 69022864 + 61968384 = 8308^2 + 7872^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 241858 + ... + 242398.

It is an arithmetic number, because the mean of its divisors is an integer number (6544379).

Almost surely, 2^130991248 is an apocalyptic number.

It is an amenable number.

130991248 is a deficient number, since it is larger than the sum of its proper divisors (130783912).

130991248 is a wasteful number, since it uses less digits than its factorization.

130991248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 130991248 is about 11445.1408029784. The cubic root of 130991248 is about 507.8639973204.

The spelling of 130991248 in words is "one hundred thirty million, nine hundred ninety-one thousand, two hundred forty-eight".