315240262 has 4 divisors (see below), whose sum is σ = 472860396. Its totient is φ = 157620130.

The previous prime is 315240239. The next prime is 315240287. The reversal of 315240262 is 262042513.

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, 78810064 + ... + 78810067.

It is an arithmetic number, because the mean of its divisors is an integer number (118215099).

Almost surely, 2^315240262 is an apocalyptic number.

315240262 is a deficient number, since it is larger than the sum of its proper divisors (157620134).

315240262 is a wasteful number, since it uses less digits than its factorization.

315240262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157620133.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 315240262 is about 17755.0066741750. The cubic root of 315240262 is about 680.5821586138.

Adding to 315240262 its reverse (262042513), we get a palindrome (577282775).

The spelling of 315240262 in words is "three hundred fifteen million, two hundred forty thousand, two hundred sixty-two".