130431642 has 32 divisors (see below), whose sum is σ = 291202560. Its totient is φ = 38604720.

The previous prime is 130431641. The next prime is 130431649. The reversal of 130431642 is 246134031.

It is not an unprimeable number, because it can be changed into a prime (130431641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20142 + ... + 25817.

It is an arithmetic number, because the mean of its divisors is an integer number (9100080).

Almost surely, 2^130431642 is an apocalyptic number.

130431642 is an abundant number, since it is smaller than the sum of its proper divisors (160770918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130431642 is a wasteful number, since it uses less digits than its factorization.

130431642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46018.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 130431642 is about 11420.6673185064. The cubic root of 130431642 is about 507.1397519425.

Adding to 130431642 its reverse (246134031), we get a palindrome (376565673).

The spelling of 130431642 in words is "one hundred thirty million, four hundred thirty-one thousand, six hundred forty-two".