315140542 has 16 divisors (see below), whose sum is σ = 479872512. Its totient is φ = 155194840.

The previous prime is 315140531. The next prime is 315140557. The reversal of 315140542 is 245041513.

It is a happy number.

It is a super-2 number, since 2×315140542² = 198627122424107528, which contains 22 as substring.

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, 54867 + ... + 60337.

It is an arithmetic number, because the mean of its divisors is an integer number (29992032).

Almost surely, 2^315140542 is an apocalyptic number.

315140542 is a deficient number, since it is larger than the sum of its proper divisors (164731970).

315140542 is a wasteful number, since it uses less digits than its factorization.

315140542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5903.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 315140542 is about 17752.1982300784. The cubic root of 315140542 is about 680.5103881596.

The spelling of 315140542 in words is "three hundred fifteen million, one hundred forty thousand, five hundred forty-two".