122505545 has 16 divisors (see below), whose sum is σ = 148874880. Its totient is φ = 96768000.

The previous prime is 122505533. The next prime is 122505589. The reversal of 122505545 is 545505221.

It is not a de Polignac number, because 122505545 - 2⁴ = 122505529 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 158921 + ... + 159689.

It is an arithmetic number, because the mean of its divisors is an integer number (9304680).

Almost surely, 2^122505545 is an apocalyptic number.

It is an amenable number.

122505545 is a deficient number, since it is larger than the sum of its proper divisors (26369335).

122505545 is a wasteful number, since it uses less digits than its factorization.

122505545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 122505545 is about 11068.2223053208. Note that the first 3 decimals coincide. The cubic root of 122505545 is about 496.6516876604.

The spelling of 122505545 in words is "one hundred twenty-two million, five hundred five thousand, five hundred forty-five".