315142 has 4 divisors (see below), whose sum is σ = 472716. Its totient is φ = 157570.

The previous prime is 315127. The next prime is 315179. The reversal of 315142 is 241513.

315142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78784 + ... + 78787.

It is an arithmetic number, because the mean of its divisors is an integer number (118179).

2³¹⁵¹⁴² is an apocalyptic number.

315142 is a deficient number, since it is larger than the sum of its proper divisors (157574).

315142 is a wasteful number, since it uses less digits than its factorization.

315142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157573.

The product of its digits is 120, while the sum is 16.

The square root of 315142 is about 561.3750974170. The cubic root of 315142 is about 68.0511437620.

Adding to 315142 its reverse (241513), we get a palindrome (556655).

The spelling of 315142 in words is "three hundred fifteen thousand, one hundred forty-two".