130562309 has 4 divisors (see below), whose sum is σ = 130912716. Its totient is φ = 130211904.

The previous prime is 130562303. The next prime is 130562317. The reversal of 130562309 is 903265031.

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

It can be written as a sum of positive squares in 2 ways, for example, as 68939809 + 61622500 = 8303^2 + 7850^2 .

It is a cyclic number.

It is not a de Polignac number, because 130562309 - 2¹² = 130558213 is a prime.

It is a super-2 number, since 2×130562309² = 34093033062822962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130562303) 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, 174644 + ... + 175389.

It is an arithmetic number, because the mean of its divisors is an integer number (32728179).

Almost surely, 2^130562309 is an apocalyptic number.

It is an amenable number.

130562309 is a deficient number, since it is larger than the sum of its proper divisors (350407).

130562309 is an equidigital number, since it uses as much as digits as its factorization.

130562309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350406.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 130562309 is about 11426.3865241816. The cubic root of 130562309 is about 507.3090470425.

The spelling of 130562309 in words is "one hundred thirty million, five hundred sixty-two thousand, three hundred nine".