345000049 has 2 divisors, whose sum is σ = 345000050. Its totient is φ = 345000048.

The previous prime is 345000017. The next prime is 345000059. The reversal of 345000049 is 940000543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 325153024 + 19847025 = 18032^2 + 4455^2 .

It is a cyclic number.

It is not a de Polignac number, because 345000049 - 2⁵ = 345000017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 344999987 and 345000032.

It is not a weakly prime, because it can be changed into another prime (345000059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172500024 + 172500025.

It is an arithmetic number, because the mean of its divisors is an integer number (172500025).

Almost surely, 2^345000049 is an apocalyptic number.

It is an amenable number.

345000049 is a deficient number, since it is larger than the sum of its proper divisors (1).

345000049 is an equidigital number, since it uses as much as digits as its factorization.

345000049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 345000049 is about 18574.1769400423. The cubic root of 345000049 is about 701.3579415543.

The spelling of 345000049 in words is "three hundred forty-five million, forty-nine", and thus it is an aban number.