345125555 has 8 divisors (see below), whose sum is σ = 414897552. Its totient is φ = 275602528.

The previous prime is 345125527. The next prime is 345125587. The reversal of 345125555 is 555521543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345125555 - 2²⁰ = 344076979 is a prime.

It is a super-2 number, since 2×345125555² = 238223297428116050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59177 + ... + 64746.

It is an arithmetic number, because the mean of its divisors is an integer number (51862194).

Almost surely, 2^345125555 is an apocalyptic number.

345125555 is a deficient number, since it is larger than the sum of its proper divisors (69771997).

345125555 is a wasteful number, since it uses less digits than its factorization.

345125555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124485.

The product of its digits is 75000, while the sum is 35.

The square root of 345125555 is about 18577.5551405453. Note that the first 3 decimals coincide. The cubic root of 345125555 is about 701.4429791828.

The spelling of 345125555 in words is "three hundred forty-five million, one hundred twenty-five thousand, five hundred fifty-five".