130134878 has 4 divisors (see below), whose sum is σ = 195202320. Its totient is φ = 65067438.

The previous prime is 130134871. The next prime is 130134887. The reversal of 130134878 is 878431031.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130134871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32533718 + ... + 32533721.

It is an arithmetic number, because the mean of its divisors is an integer number (48800580).

Almost surely, 2^130134878 is an apocalyptic number.

130134878 is a deficient number, since it is larger than the sum of its proper divisors (65067442).

130134878 is an equidigital number, since it uses as much as digits as its factorization.

130134878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65067441.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 130134878 is about 11407.6675091800. The cubic root of 130134878 is about 506.7548373987.

The spelling of 130134878 in words is "one hundred thirty million, one hundred thirty-four thousand, eight hundred seventy-eight".