345545455 has 4 divisors (see below), whose sum is σ = 414654552. Its totient is φ = 276436360.

The previous prime is 345545449. The next prime is 345545467. The reversal of 345545455 is 554545543.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 345545455 - 2⁵ = 345545423 is a prime.

It is a super-2 number, since 2×345545455² = 238803322942314050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34554541 + ... + 34554550.

It is an arithmetic number, because the mean of its divisors is an integer number (103663638).

Almost surely, 2^345545455 is an apocalyptic number.

345545455 is a deficient number, since it is larger than the sum of its proper divisors (69109097).

345545455 is an equidigital number, since it uses as much as digits as its factorization.

345545455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69109096.

The product of its digits is 600000, while the sum is 40.

The square root of 345545455 is about 18588.8529769860. The cubic root of 345545455 is about 701.7273361204.

The spelling of 345545455 in words is "three hundred forty-five million, five hundred forty-five thousand, four hundred fifty-five".