315232105 has 8 divisors (see below), whose sum is σ = 400530312. Its totient is φ = 237351168.

The previous prime is 315232069. The next prime is 315232109. The reversal of 315232105 is 501232513.

It can be written as a sum of positive squares in 4 ways, for example, as 30702681 + 284529424 = 5541^2 + 16868^2 .

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 315232105 - 2²³ = 306843497 is a prime.

It is a super-3 number, since 3×315232105³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315232109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1854222 + ... + 1854391.

It is an arithmetic number, because the mean of its divisors is an integer number (50066289).

Almost surely, 2^315232105 is an apocalyptic number.

It is an amenable number.

315232105 is a deficient number, since it is larger than the sum of its proper divisors (85298207).

315232105 is a wasteful number, since it uses less digits than its factorization.

315232105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708635.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 315232105 is about 17754.7769628345. The cubic root of 315232105 is about 680.5762884282.

Adding to 315232105 its reverse (501232513), we get a palindrome (816464618).

The spelling of 315232105 in words is "three hundred fifteen million, two hundred thirty-two thousand, one hundred five".