315101 has 4 divisors (see below), whose sum is σ = 319872. Its totient is φ = 310332.

The previous prime is 315097. The next prime is 315103. The reversal of 315101 is 101513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 315101 - 2² = 315097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 315101.

It is not an unprimeable number, because it can be changed into a prime (315103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2285 + ... + 2418.

It is an arithmetic number, because the mean of its divisors is an integer number (79968).

2³¹⁵¹⁰¹ is an apocalyptic number.

It is an amenable number.

315101 is a deficient number, since it is larger than the sum of its proper divisors (4771).

315101 is an equidigital number, since it uses as much as digits as its factorization.

315101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4770.

The product of its (nonzero) digits is 15, while the sum is 11.

The square root of 315101 is about 561.3385787562. The cubic root of 315101 is about 68.0481924809.

Adding to 315101 its reverse (101513), we get a palindrome (416614).

The spelling of 315101 in words is "three hundred fifteen thousand, one hundred one".