315206146 has 8 divisors (see below), whose sum is σ = 500621580. Its totient is φ = 148332288.

The previous prime is 315206119. The next prime is 315206147. The reversal of 315206146 is 641602513.

315206146 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 297942121 + 17264025 = 17261^2 + 4155^2 .

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

It is not an unprimeable number, because it can be changed into a prime (315206147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4635351 + ... + 4635418.

Almost surely, 2^315206146 is an apocalyptic number.

315206146 is a deficient number, since it is larger than the sum of its proper divisors (185415434).

315206146 is a wasteful number, since it uses less digits than its factorization.

315206146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9270788.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 315206146 is about 17754.0459050888. The cubic root of 315206146 is about 680.5576063581.

Adding to 315206146 its reverse (641602513), we get a palindrome (956808659).

The spelling of 315206146 in words is "three hundred fifteen million, two hundred six thousand, one hundred forty-six".