345531533 has 2 divisors, whose sum is σ = 345531534. Its totient is φ = 345531532.

The previous prime is 345531523. The next prime is 345531551. The reversal of 345531533 is 335135543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 287573764 + 57957769 = 16958^2 + 7613^2 .

It is an emirp because it is prime and its reverse (335135543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345531533 - 2⁶ = 345531469 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345531533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345531503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172765766 + 172765767.

It is an arithmetic number, because the mean of its divisors is an integer number (172765767).

Almost surely, 2^345531533 is an apocalyptic number.

It is an amenable number.

345531533 is a deficient number, since it is larger than the sum of its proper divisors (1).

345531533 is an equidigital number, since it uses as much as digits as its factorization.

345531533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40500, while the sum is 32.

The square root of 345531533 is about 18588.4785014804. The cubic root of 345531533 is about 701.7179118136.

The spelling of 345531533 in words is "three hundred forty-five million, five hundred thirty-one thousand, five hundred thirty-three".