345120455 has 8 divisors (see below), whose sum is σ = 414288000. Its totient is φ = 276000736.

The previous prime is 345120449. The next prime is 345120467. The reversal of 345120455 is 554021543.

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 345120455 - 2²⁰ = 344071879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6521 + ... + 27069.

It is an arithmetic number, because the mean of its divisors is an integer number (51786000).

Almost surely, 2^345120455 is an apocalyptic number.

345120455 is a deficient number, since it is larger than the sum of its proper divisors (69167545).

345120455 is a wasteful number, since it uses less digits than its factorization.

345120455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23913.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 345120455 is about 18577.4178776277. The cubic root of 345120455 is about 701.4395240375.

Adding to 345120455 its reverse (554021543), we get a palindrome (899141998).

The spelling of 345120455 in words is "three hundred forty-five million, one hundred twenty thousand, four hundred fifty-five".