315025145 has 8 divisors (see below), whose sum is σ = 378229704. Its totient is φ = 251887104.

The previous prime is 315025127. The next prime is 315025169. The reversal of 315025145 is 541520513.

It can be written as a sum of positive squares in 4 ways, for example, as 139806976 + 175218169 = 11824^2 + 13237^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 315025145 - 2¹⁰ = 315024121 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5534 + ... + 25703.

It is an arithmetic number, because the mean of its divisors is an integer number (47278713).

Almost surely, 2^315025145 is an apocalyptic number.

It is an amenable number.

315025145 is a deficient number, since it is larger than the sum of its proper divisors (63204559).

315025145 is a wasteful number, since it uses less digits than its factorization.

315025145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33259.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 315025145 is about 17748.9477152872. The cubic root of 315025145 is about 680.4273157587.

Adding to 315025145 its reverse (541520513), we get a palindrome (856545658).

The spelling of 315025145 in words is "three hundred fifteen million, twenty-five thousand, one hundred forty-five".