130256645 has 8 divisors (see below), whose sum is σ = 156414240. Its totient is φ = 104134480.

The previous prime is 130256641. The next prime is 130256653. The reversal of 130256645 is 546652031.

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

It is not a de Polignac number, because 130256645 - 2² = 130256641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130256641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50 + ... + 16140.

It is an arithmetic number, because the mean of its divisors is an integer number (19551780).

Almost surely, 2^130256645 is an apocalyptic number.

It is an amenable number.

130256645 is a deficient number, since it is larger than the sum of its proper divisors (26157595).

130256645 is a wasteful number, since it uses less digits than its factorization.

130256645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17715.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 130256645 is about 11413.0033295360. The cubic root of 130256645 is about 506.9128446938.

The spelling of 130256645 in words is "one hundred thirty million, two hundred fifty-six thousand, six hundred forty-five".