130623690 has 32 divisors (see below), whose sum is σ = 321972480. Its totient is φ = 33891264.

The previous prime is 130623679. The next prime is 130623697. The reversal of 130623690 is 96326031.

It is a happy number.

It is a super-2 number, since 2×130623690² = 34125096778432200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (130623697) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 57730 + ... + 59949.

It is an arithmetic number, because the mean of its divisors is an integer number (10061640).

Almost surely, 2^130623690 is an apocalyptic number.

130623690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130623690 is an abundant number, since it is smaller than the sum of its proper divisors (191348790).

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

130623690 is a wasteful number, since it uses less digits than its factorization.

130623690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117726.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 130623690 is about 11429.0721408170. The cubic root of 130623690 is about 507.3885346535.

The spelling of 130623690 in words is "one hundred thirty million, six hundred twenty-three thousand, six hundred ninety".