130731263 has 4 divisors (see below), whose sum is σ = 140787528. Its totient is φ = 120675000.

The previous prime is 130731239. The next prime is 130731277. The reversal of 130731263 is 362137031.

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

It is a cyclic number.

It is not a de Polignac number, because 130731263 - 2⁶ = 130731199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130731203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5028113 + ... + 5028138.

It is an arithmetic number, because the mean of its divisors is an integer number (35196882).

Almost surely, 2^130731263 is an apocalyptic number.

130731263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

130731263 is a deficient number, since it is larger than the sum of its proper divisors (10056265).

130731263 is a wasteful number, since it uses less digits than its factorization.

130731263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10056264.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 130731263 is about 11433.7772848696. Note that the first 3 decimals coincide. The cubic root of 130731263 is about 507.5277802745.

Adding to 130731263 its reverse (362137031), we get a palindrome (492868294).

The spelling of 130731263 in words is "one hundred thirty million, seven hundred thirty-one thousand, two hundred sixty-three".