130643506 has 24 divisors (see below), whose sum is σ = 239960880. Its totient is φ = 53042472.

The previous prime is 130643497. The next prime is 130643537. The reversal of 130643506 is 605346031.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33220 + ... + 36943.

It is an arithmetic number, because the mean of its divisors is an integer number (9998370).

Almost surely, 2^130643506 is an apocalyptic number.

130643506 is a deficient number, since it is larger than the sum of its proper divisors (109317374).

130643506 is a wasteful number, since it uses less digits than its factorization.

130643506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70198 (or 70191 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 130643506 is about 11429.9390199598. The cubic root of 130643506 is about 507.4141908032.

Adding to 130643506 its reverse (605346031), we get a palindrome (735989537).

The spelling of 130643506 in words is "one hundred thirty million, six hundred forty-three thousand, five hundred six".