130172208 has 20 divisors (see below), whose sum is σ = 336278328. Its totient is φ = 43390720.

The previous prime is 130172191. The next prime is 130172209. The reversal of 130172208 is 802271031.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (130172209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1355913 + ... + 1356008.

Almost surely, 2^130172208 is an apocalyptic number.

It is an amenable number.

130172208 is an abundant number, since it is smaller than the sum of its proper divisors (206106120).

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

130172208 is a wasteful number, since it uses less digits than its factorization.

130172208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711932 (or 2711926 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 130172208 is about 11409.3035720854. The cubic root of 130172208 is about 506.8032880263.

It can be divided in two parts, 13017 and 2208, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 130172208 in words is "one hundred thirty million, one hundred seventy-two thousand, two hundred eight".