130751649 has 18 divisors (see below), whose sum is σ = 219699090. Its totient is φ = 74714976.

The previous prime is 130751629. The next prime is 130751651. The reversal of 130751649 is 946157031.

130751649 is a `hidden beast` number, since 1 + 3 + 0 + 7 + 5 + 1 + 649 = 666.

It can be written as a sum of positive squares in only one way, i.e., 96177249 + 34574400 = 9807^2 + 5880^2 .

It is not a de Polignac number, because 130751649 - 2⁵ = 130751617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130751629) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 147804 + ... + 148685.

It is an arithmetic number, because the mean of its divisors is an integer number (12205505).

Almost surely, 2^130751649 is an apocalyptic number.

It is an amenable number.

130751649 is a deficient number, since it is larger than the sum of its proper divisors (88947441).

130751649 is a wasteful number, since it uses less digits than its factorization.

130751649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296509 (or 296499 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 130751649 is about 11434.6687315374. The cubic root of 130751649 is about 507.5541598957.

The spelling of 130751649 in words is "one hundred thirty million, seven hundred fifty-one thousand, six hundred forty-nine".