130431345 has 64 divisors (see below), whose sum is σ = 236113920. Its totient is φ = 61448640.

The previous prime is 130431317. The next prime is 130431383. The reversal of 130431345 is 543134031.

It is a happy number.

It is not a de Polignac number, because 130431345 - 2¹⁴ = 130414961 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 938286 + ... + 938424.

It is an arithmetic number, because the mean of its divisors is an integer number (3689280).

Almost surely, 2^130431345 is an apocalyptic number.

130431345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130431345 is a deficient number, since it is larger than the sum of its proper divisors (105682575).

130431345 is a wasteful number, since it uses less digits than its factorization.

130431345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 130431345 is about 11420.6543157562. The cubic root of 130431345 is about 507.1393670139.

Adding to 130431345 its reverse (543134031), we get a palindrome (673565376).

The spelling of 130431345 in words is "one hundred thirty million, four hundred thirty-one thousand, three hundred forty-five".