130768642 has 4 divisors (see below), whose sum is σ = 196152966. Its totient is φ = 65384320.

The previous prime is 130768637. The next prime is 130768663. The reversal of 130768642 is 246867031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 246867031 = 151 ⋅1634881.

It can be written as a sum of positive squares in only one way, i.e., 120978001 + 9790641 = 10999^2 + 3129^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32692159 + ... + 32692162.

Almost surely, 2^130768642 is an apocalyptic number.

130768642 is a deficient number, since it is larger than the sum of its proper divisors (65384324).

130768642 is an equidigital number, since it uses as much as digits as its factorization.

130768642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65384323.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 130768642 is about 11435.4117547205. The cubic root of 130768642 is about 507.5761468567.

The spelling of 130768642 in words is "one hundred thirty million, seven hundred sixty-eight thousand, six hundred forty-two".