315530542 has 4 divisors (see below), whose sum is σ = 473295816. Its totient is φ = 157765270.

The previous prime is 315530539. The next prime is 315530569. The reversal of 315530542 is 245035513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 245035513 = 601 ⋅407713.

It is a self number, because there is not a number n which added to its sum of digits gives 315530542.

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, 78882634 + ... + 78882637.

It is an arithmetic number, because the mean of its divisors is an integer number (118323954).

Almost surely, 2^315530542 is an apocalyptic number.

315530542 is a deficient number, since it is larger than the sum of its proper divisors (157765274).

315530542 is a wasteful number, since it uses less digits than its factorization.

315530542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157765273.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 315530542 is about 17763.1793888369. The cubic root of 315530542 is about 680.7909927475.

The spelling of 315530542 in words is "three hundred fifteen million, five hundred thirty thousand, five hundred forty-two".