345124631 has 2 divisors, whose sum is σ = 345124632. Its totient is φ = 345124630.

The previous prime is 345124583. The next prime is 345124639. The reversal of 345124631 is 136421543.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345124631 is a prime.

It is a super-2 number, since 2×345124631² = 238222021845772322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 345124594 and 345124603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345124639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172562315 + 172562316.

It is an arithmetic number, because the mean of its divisors is an integer number (172562316).

Almost surely, 2^345124631 is an apocalyptic number.

345124631 is a deficient number, since it is larger than the sum of its proper divisors (1).

345124631 is an equidigital number, since it uses as much as digits as its factorization.

345124631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 345124631 is about 18577.5302718095. The cubic root of 345124631 is about 701.4423531943.

It can be divided in two parts, 3451 and 24631, that added together give a palindrome (28082).

The spelling of 345124631 in words is "three hundred forty-five million, one hundred twenty-four thousand, six hundred thirty-one".