315145546 has 8 divisors (see below), whose sum is σ = 472809060. Its totient is φ = 157542528.

The previous prime is 315145513. The next prime is 315145559. The reversal of 315145546 is 645541513.

It can be written as a sum of positive squares in 2 ways, for example, as 304328025 + 10817521 = 17445^2 + 3289^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1600 + ... + 25156.

Almost surely, 2^315145546 is an apocalyptic number.

315145546 is a deficient number, since it is larger than the sum of its proper divisors (157663514).

315145546 is a wasteful number, since it uses less digits than its factorization.

315145546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30248.

The product of its digits is 36000, while the sum is 34.

The square root of 315145546 is about 17752.3391698108. The cubic root of 315145546 is about 680.5139899981.

The spelling of 315145546 in words is "three hundred fifteen million, one hundred forty-five thousand, five hundred forty-six".