345259971 has 24 divisors (see below), whose sum is σ = 571806560. Its totient is φ = 196649856.

The previous prime is 345259961. The next prime is 345260009. The reversal of 345259971 is 179952543.

It is a happy number.

345259971 is a `hidden beast` number, since 3 + 4 + 52 + 599 + 7 + 1 = 666.

It is not a de Polignac number, because 345259971 - 2⁷ = 345259843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345259961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10965 + ... + 28473.

Almost surely, 2^345259971 is an apocalyptic number.

345259971 is a deficient number, since it is larger than the sum of its proper divisors (226546589).

345259971 is a wasteful number, since it uses less digits than its factorization.

345259971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17835 (or 17832 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 345259971 is about 18581.1724872248. The cubic root of 345259971 is about 701.5340309951.

The spelling of 345259971 in words is "three hundred forty-five million, two hundred fifty-nine thousand, nine hundred seventy-one".