315605149 has 8 divisors (see below), whose sum is σ = 330892992. Its totient is φ = 300447840.

The previous prime is 315605131. The next prime is 315605177. The reversal of 315605149 is 941506513.

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 315605149 - 2⁷ = 315605021 is a prime.

It is a super-2 number, since 2×315605149² = 199213220150624402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315605179) 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, 27664 + ... + 37369.

It is an arithmetic number, because the mean of its divisors is an integer number (41361624).

Almost surely, 2^315605149 is an apocalyptic number.

It is an amenable number.

315605149 is a deficient number, since it is larger than the sum of its proper divisors (15287843).

315605149 is a wasteful number, since it uses less digits than its factorization.

315605149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65267.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 315605149 is about 17765.2793110607. The cubic root of 315605149 is about 680.8446460542.

The spelling of 315605149 in words is "three hundred fifteen million, six hundred five thousand, one hundred forty-nine".