68130130 has 8 divisors (see below), whose sum is σ = 122634252. Its totient is φ = 27252048.

The previous prime is 68130121. The next prime is 68130131. The reversal of 68130130 is 3103186.

It can be written as a sum of positive squares in 2 ways, for example, as 67848169 + 281961 = 8237^2 + 531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×68130130² = 9283429227633800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68130131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3406497 + ... + 3406516.

Almost surely, 2^68130130 is an apocalyptic number.

68130130 is a deficient number, since it is larger than the sum of its proper divisors (54504122).

68130130 is a wasteful number, since it uses less digits than its factorization.

68130130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6813020.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 68130130 is about 8254.0977701988. The cubic root of 68130130 is about 408.4257098606.

The spelling of 68130130 in words is "sixty-eight million, one hundred thirty thousand, one hundred thirty".