315016121 has 8 divisors (see below), whose sum is σ = 360274944. Its totient is φ = 269821440.

The previous prime is 315016087. The next prime is 315016129. The reversal of 315016121 is 121610513.

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

It is not a de Polignac number, because 315016121 - 2⁶ = 315016057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 315016093 and 315016102.

It is not an unprimeable number, because it can be changed into a prime (315016129) 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, 5000 + ... + 25593.

It is an arithmetic number, because the mean of its divisors is an integer number (45034368).

Almost surely, 2^315016121 is an apocalyptic number.

It is an amenable number.

315016121 is a deficient number, since it is larger than the sum of its proper divisors (45258823).

315016121 is a wasteful number, since it uses less digits than its factorization.

315016121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32071.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 315016121 is about 17748.6935012130. The cubic root of 315016121 is about 680.4208186745.

Adding to 315016121 its reverse (121610513), we get a palindrome (436626634).

The spelling of 315016121 in words is "three hundred fifteen million, sixteen thousand, one hundred twenty-one".