2345831 has 2 divisors, whose sum is σ = 2345832. Its totient is φ = 2345830.

The previous prime is 2345809. The next prime is 2345843. The reversal of 2345831 is 1385432.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2345831 is a prime.

It is a super-2 number, since 2×2345831² = 11005846161122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2345831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2345891) 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, 1172915 + 1172916.

It is an arithmetic number, because the mean of its divisors is an integer number (1172916).

2^2345831 is an apocalyptic number.

2345831 is a deficient number, since it is larger than the sum of its proper divisors (1).

2345831 is an equidigital number, since it uses as much as digits as its factorization.

2345831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 26.

The square root of 2345831 is about 1531.6105901958. The cubic root of 2345831 is about 132.8716231623.

It can be divided in two parts, 23 and 45831, that added together give a palindrome (45854).

The spelling of 2345831 in words is "two million, three hundred forty-five thousand, eight hundred thirty-one".