130312547 has 4 divisors (see below), whose sum is σ = 131175696. Its totient is φ = 129449400.

The previous prime is 130312513. The next prime is 130312577. The reversal of 130312547 is 745213031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130312547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130312577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431348 + ... + 431649.

It is an arithmetic number, because the mean of its divisors is an integer number (32793924).

Almost surely, 2^130312547 is an apocalyptic number.

130312547 is a deficient number, since it is larger than the sum of its proper divisors (863149).

130312547 is an equidigital number, since it uses as much as digits as its factorization.

130312547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863148.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 130312547 is about 11415.4521154442. The cubic root of 130312547 is about 506.9853512672.

Adding to 130312547 its reverse (745213031), we get a palindrome (875525578).

The spelling of 130312547 in words is "one hundred thirty million, three hundred twelve thousand, five hundred forty-seven".