315021342 has 8 divisors (see below), whose sum is σ = 630042696. Its totient is φ = 105007112.

The previous prime is 315021299. The next prime is 315021361. The reversal of 315021342 is 243120513.

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

315021342 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26251773 + ... + 26251784.

It is an arithmetic number, because the mean of its divisors is an integer number (78755337).

Almost surely, 2^315021342 is an apocalyptic number.

315021342 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.

315021342 is a wasteful number, since it uses less digits than its factorization.

315021342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52503562.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 315021342 is about 17748.8405818521. The cubic root of 315021342 is about 680.4245776963.

Adding to 315021342 its reverse (243120513), we get a palindrome (558141855).

The spelling of 315021342 in words is "three hundred fifteen million, twenty-one thousand, three hundred forty-two".