130968638 has 4 divisors (see below), whose sum is σ = 196452960. Its totient is φ = 65484318.

The previous prime is 130968599. The next prime is 130968661. The reversal of 130968638 is 836869031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 836869031 = 2203 ⋅379877.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32742158 + ... + 32742161.

It is an arithmetic number, because the mean of its divisors is an integer number (49113240).

Almost surely, 2^130968638 is an apocalyptic number.

130968638 is a deficient number, since it is larger than the sum of its proper divisors (65484322).

130968638 is an equidigital number, since it uses as much as digits as its factorization.

130968638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65484321.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 130968638 is about 11444.1530049191. The cubic root of 130968638 is about 507.8347753536.

The spelling of 130968638 in words is "one hundred thirty million, nine hundred sixty-eight thousand, six hundred thirty-eight".