345045561 has 8 divisors (see below), whose sum is σ = 525783744. Its totient is φ = 197168880.

The previous prime is 345045539. The next prime is 345045581. The reversal of 345045561 is 165540543.

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

It is not a de Polignac number, because 345045561 - 2¹⁴ = 345029177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345045581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8215350 + ... + 8215391.

It is an arithmetic number, because the mean of its divisors is an integer number (65722968).

Almost surely, 2^345045561 is an apocalyptic number.

It is an amenable number.

345045561 is a deficient number, since it is larger than the sum of its proper divisors (180738183).

345045561 is a wasteful number, since it uses less digits than its factorization.

345045561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16430751.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 345045561 is about 18575.4020414095. The cubic root of 345045561 is about 701.3887809694.

The spelling of 345045561 in words is "three hundred forty-five million, forty-five thousand, five hundred sixty-one".