315281742 has 8 divisors (see below), whose sum is σ = 630563496. Its totient is φ = 105093912.

The previous prime is 315281741. The next prime is 315281753. The reversal of 315281742 is 247182513.

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

315281742 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315281741) 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, 26273473 + ... + 26273484.

It is an arithmetic number, because the mean of its divisors is an integer number (78820437).

Almost surely, 2^315281742 is an apocalyptic number.

315281742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

315281742 is a wasteful number, since it uses less digits than its factorization.

315281742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52546962.

The product of its digits is 13440, while the sum is 33.

The square root of 315281742 is about 17756.1747569683. The cubic root of 315281742 is about 680.6120081320.

The spelling of 315281742 in words is "three hundred fifteen million, two hundred eighty-one thousand, seven hundred forty-two".