345210049 has 2 divisors, whose sum is σ = 345210050. Its totient is φ = 345210048.

The previous prime is 345210043. The next prime is 345210053. The reversal of 345210049 is 940012543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272415025 + 72795024 = 16505^2 + 8532^2 .

It is a cyclic number.

It is not a de Polignac number, because 345210049 - 2²¹ = 343112897 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 345209999 and 345210026.

It is not a weakly prime, because it can be changed into another prime (345210043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172605024 + 172605025.

It is an arithmetic number, because the mean of its divisors is an integer number (172605025).

Almost surely, 2^345210049 is an apocalyptic number.

It is an amenable number.

345210049 is a deficient number, since it is larger than the sum of its proper divisors (1).

345210049 is an equidigital number, since it uses as much as digits as its factorization.

345210049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 345210049 is about 18579.8290896337. The cubic root of 345210049 is about 701.5002171804.

The spelling of 345210049 in words is "three hundred forty-five million, two hundred ten thousand, forty-nine".