122805345 has 32 divisors (see below), whose sum is σ = 214526592. Its totient is φ = 59622912.

The previous prime is 122805323. The next prime is 122805409. The reversal of 122805345 is 543508221.

It is not a de Polignac number, because 122805345 - 2⁶ = 122805281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9922 + ... + 18548.

It is an arithmetic number, because the mean of its divisors is an integer number (6703956).

Almost surely, 2^122805345 is an apocalyptic number.

122805345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122805345 is a deficient number, since it is larger than the sum of its proper divisors (91721247).

122805345 is a wasteful number, since it uses less digits than its factorization.

122805345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8721.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 122805345 is about 11081.7573064925. The cubic root of 122805345 is about 497.0564989405.

The spelling of 122805345 in words is "one hundred twenty-two million, eight hundred five thousand, three hundred forty-five".