68543130 has 64 divisors (see below), whose sum is σ = 168334848. Its totient is φ = 17858880.

The previous prime is 68543117. The next prime is 68543141. The reversal of 68543130 is 3134586.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 420429 + ... + 420591.

It is an arithmetic number, because the mean of its divisors is an integer number (2630232).

Almost surely, 2^68543130 is an apocalyptic number.

68543130 is an abundant number, since it is smaller than the sum of its proper divisors (99791718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68543130 is a wasteful number, since it uses less digits than its factorization.

68543130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 68543130 is about 8279.0778472001. The cubic root of 68543130 is about 409.2493303827.

The spelling of 68543130 in words is "sixty-eight million, five hundred forty-three thousand, one hundred thirty".