345970123 has 2 divisors, whose sum is σ = 345970124. Its totient is φ = 345970122.

The previous prime is 345970081. The next prime is 345970127. The reversal of 345970123 is 321079543.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345970123 is a prime.

It is not a weakly prime, because it can be changed into another prime (345970127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172985061 + 172985062.

It is an arithmetic number, because the mean of its divisors is an integer number (172985062).

Almost surely, 2^345970123 is an apocalyptic number.

345970123 is a deficient number, since it is larger than the sum of its proper divisors (1).

345970123 is an equidigital number, since it uses as much as digits as its factorization.

345970123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 345970123 is about 18600.2721216653. The cubic root of 345970123 is about 702.0146877499.

The spelling of 345970123 in words is "three hundred forty-five million, nine hundred seventy thousand, one hundred twenty-three".