313531151 has 4 divisors (see below), whose sum is σ = 324342600. Its totient is φ = 302719704.

The previous prime is 313531139. The next prime is 313531157. The reversal of 313531151 is 151135313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151135313 = 7 ⋅21590759.

It is a cyclic number.

It is not a de Polignac number, because 313531151 - 2¹⁸ = 313269007 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 (313531157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5405681 + ... + 5405738.

It is an arithmetic number, because the mean of its divisors is an integer number (81085650).

Almost surely, 2^313531151 is an apocalyptic number.

313531151 is a deficient number, since it is larger than the sum of its proper divisors (10811449).

313531151 is a wasteful number, since it uses less digits than its factorization.

313531151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10811448.

The product of its digits is 675, while the sum is 23.

The square root of 313531151 is about 17706.8108647492. The cubic root of 313531151 is about 679.3499778806.

Adding to 313531151 its reverse (151135313), we get a palindrome (464666464).

The spelling of 313531151 in words is "three hundred thirteen million, five hundred thirty-one thousand, one hundred fifty-one".