130431489409 has 15 divisors (see below), whose sum is σ = 141366551487. Its totient is φ = 120341958048.

The previous prime is 130431489371. The next prime is 130431489413. The reversal of 130431489409 is 904984134031.

The square root of 130431489409 is 361153.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 92845137025 + 37586352384 = 304705^2 + 193872^2 .

It is not a de Polignac number, because 130431489409 - 2²¹ = 130429392257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130431439409) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 61033789 + ... + 61035925.

Almost surely, 2^130431489409 is an apocalyptic number.

130431489409 is the 361153-rd square number.

130431489409 is the 180577-th centered octagonal number.

It is an amenable number.

130431489409 is a deficient number, since it is larger than the sum of its proper divisors (10935062078).

130431489409 is an frugal number, since it uses more digits than its factorization.

130431489409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4326 (or 2150 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 130431489409 in words is "one hundred thirty billion, four hundred thirty-one million, four hundred eighty-nine thousand, four hundred nine".