317149 has 4 divisors (see below), whose sum is σ = 362464. Its totient is φ = 271836.

The previous prime is 317123. The next prime is 317159. The reversal of 317149 is 941713.

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, and also an emirpimes, since its reverse is a distinct semiprime: 941713 = 167 ⋅5639.

It is a cyclic number.

It is not a de Polignac number, because 317149 - 2⁷ = 317021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317159) 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, 22647 + ... + 22660.

It is an arithmetic number, because the mean of its divisors is an integer number (90616).

2³¹⁷¹⁴⁹ is an apocalyptic number.

It is an amenable number.

317149 is a deficient number, since it is larger than the sum of its proper divisors (45315).

317149 is an equidigital number, since it uses as much as digits as its factorization.

317149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45314.

The product of its digits is 756, while the sum is 25.

The square root of 317149 is about 563.1598352155. The cubic root of 317149 is about 68.1953007142.

The spelling of 317149 in words is "three hundred seventeen thousand, one hundred forty-nine".