130172245 has 8 divisors (see below), whose sum is σ = 178521984. Its totient is φ = 89260944.

The previous prime is 130172239. The next prime is 130172261. The reversal of 130172245 is 542271031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130172245 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1859569 + ... + 1859638.

It is an arithmetic number, because the mean of its divisors is an integer number (22315248).

Almost surely, 2^130172245 is an apocalyptic number.

It is an amenable number.

130172245 is a deficient number, since it is larger than the sum of its proper divisors (48349739).

130172245 is an equidigital number, since it uses as much as digits as its factorization.

130172245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3719219.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 130172245 is about 11409.3051935690. The cubic root of 130172245 is about 506.8033360440.

The spelling of 130172245 in words is "one hundred thirty million, one hundred seventy-two thousand, two hundred forty-five".