130268731 has 4 divisors (see below), whose sum is σ = 137125000. Its totient is φ = 123412464.

The previous prime is 130268707. The next prime is 130268791. The reversal of 130268731 is 137862031.

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 130268731 - 2⁹ = 130268219 is a prime.

It is a super-2 number, since 2×130268731² = 33939884552700722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130268693 and 130268702.

It is not an unprimeable number, because it can be changed into a prime (130268701) 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, 3428106 + ... + 3428143.

It is an arithmetic number, because the mean of its divisors is an integer number (34281250).

Almost surely, 2^130268731 is an apocalyptic number.

130268731 is a deficient number, since it is larger than the sum of its proper divisors (6856269).

130268731 is an equidigital number, since it uses as much as digits as its factorization.

130268731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6856268.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 130268731 is about 11413.5328010218. The cubic root of 130268731 is about 506.9285223563.

The spelling of 130268731 in words is "one hundred thirty million, two hundred sixty-eight thousand, seven hundred thirty-one".