130506780 has 48 divisors (see below), whose sum is σ = 373201920. Its totient is φ = 34060608.

The previous prime is 130506769. The next prime is 130506781. The reversal of 130506780 is 87605031.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130506781) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 20320 + ... + 25959.

It is an arithmetic number, because the mean of its divisors is an integer number (7775040).

Almost surely, 2^130506780 is an apocalyptic number.

130506780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130506780 is an abundant number, since it is smaller than the sum of its proper divisors (242695140).

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

130506780 is a wasteful number, since it uses less digits than its factorization.

130506780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46338 (or 46336 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 130506780 is about 11423.9564074799. The cubic root of 130506780 is about 507.2371162305.

The spelling of 130506780 in words is "one hundred thirty million, five hundred six thousand, seven hundred eighty".