345031033 has 2 divisors, whose sum is σ = 345031034. Its totient is φ = 345031032.

The previous prime is 345031021. The next prime is 345031079. The reversal of 345031033 is 330130543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260887104 + 84143929 = 16152^2 + 9173^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345031033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 345030995 and 345031013.

It is not a weakly prime, because it can be changed into another prime (345031733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172515516 + 172515517.

It is an arithmetic number, because the mean of its divisors is an integer number (172515517).

Almost surely, 2^345031033 is an apocalyptic number.

It is an amenable number.

345031033 is a deficient number, since it is larger than the sum of its proper divisors (1).

345031033 is an equidigital number, since it uses as much as digits as its factorization.

345031033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 345031033 is about 18575.0109825001. The cubic root of 345031033 is about 701.3789369368.

Adding to 345031033 its reverse (330130543), we get a palindrome (675161576).

The spelling of 345031033 in words is "three hundred forty-five million, thirty-one thousand, thirty-three".