130689506 has 16 divisors (see below), whose sum is σ = 209088216. Its totient is φ = 61049856.

The previous prime is 130689451. The next prime is 130689527. The reversal of 130689506 is 605986031.

It can be written as a sum of positive squares in 4 ways, for example, as 126450025 + 4239481 = 11245^2 + 2059^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 130689506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9371 + ... + 18686.

Almost surely, 2^130689506 is an apocalyptic number.

130689506 is a deficient number, since it is larger than the sum of its proper divisors (78398710).

130689506 is a wasteful number, since it uses less digits than its factorization.

130689506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28213.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 130689506 is about 11431.9511020648. The cubic root of 130689506 is about 507.4737378727.

The spelling of 130689506 in words is "one hundred thirty million, six hundred eighty-nine thousand, five hundred six".