612331 has 2 divisors, whose sum is σ = 612332. Its totient is φ = 612330.

The previous prime is 612319. The next prime is 612341. The reversal of 612331 is 133216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 612331 - 2¹⁵ = 579563 is a prime.

It is a super-2 number, since 2×612331² = 749898507122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (612301) 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 as a sum of consecutive naturals, namely, 306165 + 306166.

It is an arithmetic number, because the mean of its divisors is an integer number (306166).

2⁶¹²³³¹ is an apocalyptic number.

612331 is a deficient number, since it is larger than the sum of its proper divisors (1).

612331 is an equidigital number, since it uses as much as digits as its factorization.

612331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108, while the sum is 16.

The square root of 612331 is about 782.5158145367. The cubic root of 612331 is about 84.9171511079.

Adding to 612331 its reverse (133216), we get a palindrome (745547).

The spelling of 612331 in words is "six hundred twelve thousand, three hundred thirty-one".