130017878 has 4 divisors (see below), whose sum is σ = 195026820. Its totient is φ = 65008938.

The previous prime is 130017863. The next prime is 130017883. The reversal of 130017878 is 878710031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 878710031 = 43 ⋅20435117.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32504468 + ... + 32504471.

It is an arithmetic number, because the mean of its divisors is an integer number (48756705).

Almost surely, 2^130017878 is an apocalyptic number.

130017878 is a deficient number, since it is larger than the sum of its proper divisors (65008942).

130017878 is an equidigital number, since it uses as much as digits as its factorization.

130017878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65008941.

The product of its (nonzero) digits is 9408, while the sum is 35.

The square root of 130017878 is about 11402.5382262021. The cubic root of 130017878 is about 506.6029229787.

The spelling of 130017878 in words is "one hundred thirty million, seventeen thousand, eight hundred seventy-eight".