345631633 has 2 divisors, whose sum is σ = 345631634. Its totient is φ = 345631632.

The previous prime is 345631619. The next prime is 345631639. The reversal of 345631633 is 336136543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 268402689 + 77228944 = 16383^2 + 8788^2 .

It is a cyclic number.

It is not a de Polignac number, because 345631633 - 2²¹ = 343534481 is a prime.

It is a super-2 number, since 2×345631633² = 238922451460493378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (345631639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172815816 + 172815817.

It is an arithmetic number, because the mean of its divisors is an integer number (172815817).

Almost surely, 2^345631633 is an apocalyptic number.

It is an amenable number.

345631633 is a deficient number, since it is larger than the sum of its proper divisors (1).

345631633 is an equidigital number, since it uses as much as digits as its factorization.

345631633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 34.

The square root of 345631633 is about 18591.1708345655. The cubic root of 345631633 is about 701.7856675024.

The spelling of 345631633 in words is "three hundred forty-five million, six hundred thirty-one thousand, six hundred thirty-three".