345857951 has 2 divisors, whose sum is σ = 345857952. Its totient is φ = 345857950.

The previous prime is 345857933. The next prime is 345857959. The reversal of 345857951 is 159758543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345857951 - 2²⁶ = 278749087 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 345857896 and 345857905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345857959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172928975 + 172928976.

It is an arithmetic number, because the mean of its divisors is an integer number (172928976).

Almost surely, 2^345857951 is an apocalyptic number.

345857951 is a deficient number, since it is larger than the sum of its proper divisors (1).

345857951 is an equidigital number, since it uses as much as digits as its factorization.

345857951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756000, while the sum is 47.

The square root of 345857951 is about 18597.2565449853. The cubic root of 345857951 is about 701.9388094217.

The spelling of 345857951 in words is "three hundred forty-five million, eight hundred fifty-seven thousand, nine hundred fifty-one".