122155545 has 16 divisors (see below), whose sum is σ = 195587712. Its totient is φ = 65103360.

The previous prime is 122155519. The next prime is 122155549. The reversal of 122155545 is 545551221.

It is not a de Polignac number, because 122155545 - 2⁷ = 122155417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122155549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34665 + ... + 38025.

It is an arithmetic number, because the mean of its divisors is an integer number (12224232).

Almost surely, 2^122155545 is an apocalyptic number.

122155545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122155545 is a deficient number, since it is larger than the sum of its proper divisors (73432167).

122155545 is a wasteful number, since it uses less digits than its factorization.

122155545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5792.

The product of its digits is 10000, while the sum is 30.

The square root of 122155545 is about 11052.3999656183. The cubic root of 122155545 is about 496.1782563094.

The spelling of 122155545 in words is "one hundred twenty-two million, one hundred fifty-five thousand, five hundred forty-five".