130144840 has 32 divisors (see below), whose sum is σ = 334658880. Its totient is φ = 44620992.

The previous prime is 130144831. The next prime is 130144867. The reversal of 130144840 is 48441031.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232122 + ... + 232681.

It is an arithmetic number, because the mean of its divisors is an integer number (10458090).

Almost surely, 2^130144840 is an apocalyptic number.

130144840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130144840 is an abundant number, since it is smaller than the sum of its proper divisors (204514040).

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

130144840 is a wasteful number, since it uses less digits than its factorization.

130144840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464821 (or 464817 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 130144840 is about 11408.1041369721. The cubic root of 130144840 is about 506.7677679903.

Adding to 130144840 its reverse (48441031), we get a palindrome (178585871).

The spelling of 130144840 in words is "one hundred thirty million, one hundred forty-four thousand, eight hundred forty".