130440132 has 30 divisors (see below), whose sum is σ = 340997118. Its totient is φ = 43479936.

The previous prime is 130440109. The next prime is 130440197. The reversal of 130440132 is 231044031.

It can be written as a sum of positive squares in only one way, i.e., 123343236 + 7096896 = 11106^2 + 2664^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 200973 + ... + 201620.

Almost surely, 2^130440132 is an apocalyptic number.

130440132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130440132 is an abundant number, since it is smaller than the sum of its proper divisors (210556986).

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

130440132 is a wasteful number, since it uses less digits than its factorization.

130440132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402609 (or 402598 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 130440132 is about 11421.0390070256. The cubic root of 130440132 is about 507.1507552109.

Adding to 130440132 its reverse (231044031), we get a palindrome (361484163).

The spelling of 130440132 in words is "one hundred thirty million, four hundred forty thousand, one hundred thirty-two".