345331073 has 2 divisors, whose sum is σ = 345331074. Its totient is φ = 345331072.

The previous prime is 345331057. The next prime is 345331109. The reversal of 345331073 is 370133543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315169009 + 30162064 = 17753^2 + 5492^2 .

It is a cyclic number.

It is not a de Polignac number, because 345331073 - 2⁴ = 345331057 is a prime.

It is not a weakly prime, because it can be changed into another prime (345331373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172665536 + 172665537.

It is an arithmetic number, because the mean of its divisors is an integer number (172665537).

Almost surely, 2^345331073 is an apocalyptic number.

It is an amenable number.

345331073 is a deficient number, since it is larger than the sum of its proper divisors (1).

345331073 is an equidigital number, since it uses as much as digits as its factorization.

345331073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 29.

The square root of 345331073 is about 18583.0856695006. The cubic root of 345331073 is about 701.5821850945.

The spelling of 345331073 in words is "three hundred forty-five million, three hundred thirty-one thousand, seventy-three".