345022631 has 2 divisors, whose sum is σ = 345022632. Its totient is φ = 345022630.

The previous prime is 345022549. The next prime is 345022637. The reversal of 345022631 is 136220543.

It is a strong prime.

It is an emirp because it is prime and its reverse (136220543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345022631 - 2²⁶ = 277913767 is a prime.

It is a super-2 number, since 2×345022631² = 238081231804324322, 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 345022631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345022637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172511315 + 172511316.

It is an arithmetic number, because the mean of its divisors is an integer number (172511316).

Almost surely, 2^345022631 is an apocalyptic number.

345022631 is a deficient number, since it is larger than the sum of its proper divisors (1).

345022631 is an equidigital number, since it uses as much as digits as its factorization.

345022631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 345022631 is about 18574.7848170578. The cubic root of 345022631 is about 701.3732436966.

The spelling of 345022631 in words is "three hundred forty-five million, twenty-two thousand, six hundred thirty-one".