68313144 has 32 divisors (see below), whose sum is σ = 171213840. Its totient is φ = 22713600.

The previous prime is 68313121. The next prime is 68313163. The reversal of 68313144 is 44131386.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6724 + ... + 13484.

Almost surely, 2^68313144 is an apocalyptic number.

It is an amenable number.

68313144 is an abundant number, since it is smaller than the sum of its proper divisors (102900696).

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

68313144 is a wasteful number, since it uses less digits than its factorization.

68313144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7191 (or 7187 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 68313144 is about 8265.1765861354. The cubic root of 68313144 is about 408.7910929518.

The spelling of 68313144 in words is "sixty-eight million, three hundred thirteen thousand, one hundred forty-four".