312717140 has 24 divisors (see below), whose sum is σ = 666510432. Its totient is φ = 123219360.

The previous prime is 312717107. The next prime is 312717161. The reversal of 312717140 is 41717213.

It is a happy number.

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, 115346 + ... + 118025.

It is an arithmetic number, because the mean of its divisors is an integer number (27771268).

Almost surely, 2^312717140 is an apocalyptic number.

It is an amenable number.

312717140 is an abundant number, since it is smaller than the sum of its proper divisors (353793292).

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

312717140 is a wasteful number, since it uses less digits than its factorization.

312717140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233447 (or 233445 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 312717140 is about 17683.8101098151. The cubic root of 312717140 is about 678.7615433961.

The spelling of 312717140 in words is "three hundred twelve million, seven hundred seventeen thousand, one hundred forty".