316551 has 4 divisors (see below), whose sum is σ = 422072. Its totient is φ = 211032.

The previous prime is 316531. The next prime is 316567. The reversal of 316551 is 155613.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155613 = 3 ⋅51871.

It is not a de Polignac number, because 316551 - 2⁷ = 316423 is a prime.

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316501) 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, 52756 + ... + 52761.

It is an arithmetic number, because the mean of its divisors is an integer number (105518).

2³¹⁶⁵⁵¹ is an apocalyptic number.

316551 is a deficient number, since it is larger than the sum of its proper divisors (105521).

316551 is a wasteful number, since it uses less digits than its factorization.

316551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105520.

The product of its digits is 450, while the sum is 21.

The square root of 316551 is about 562.6286519544. The cubic root of 316551 is about 68.1524118848.

The spelling of 316551 in words is "three hundred sixteen thousand, five hundred fifty-one".