130504040 has 16 divisors (see below), whose sum is σ = 293634180. Its totient is φ = 52201600.

The previous prime is 130504021. The next prime is 130504081. The reversal of 130504040 is 40405031.

It can be written as a sum of positive squares in 2 ways, for example, as 130005604 + 498436 = 11402^2 + 706^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1631261 + ... + 1631340.

Almost surely, 2^130504040 is an apocalyptic number.

130504040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130504040 is an abundant number, since it is smaller than the sum of its proper divisors (163130140).

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

130504040 is a wasteful number, since it uses less digits than its factorization.

130504040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262612 (or 3262608 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 130504040 is about 11423.8364834236. The cubic root of 130504040 is about 507.2335663781.

Adding to 130504040 its reverse (40405031), we get a palindrome (170909071).

Subtracting from 130504040 its reverse (40405031), we obtain a palindrome (90099009).

The spelling of 130504040 in words is "one hundred thirty million, five hundred four thousand, forty".