122541815 has 32 divisors (see below), whose sum is σ = 169814016. Its totient is φ = 84015360.

The previous prime is 122541799. The next prime is 122541847. The reversal of 122541815 is 518145221.

It is not a de Polignac number, because 122541815 - 2⁴ = 122541799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91682 + ... + 93008.

It is an arithmetic number, because the mean of its divisors is an integer number (5306688).

Almost surely, 2^122541815 is an apocalyptic number.

122541815 is a deficient number, since it is larger than the sum of its proper divisors (47272201).

122541815 is a wasteful number, since it uses less digits than its factorization.

122541815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439.

The product of its digits is 3200, while the sum is 29.

The square root of 122541815 is about 11069.8606585630. The cubic root of 122541815 is about 496.7006970862.

The spelling of 122541815 in words is "one hundred twenty-two million, five hundred forty-one thousand, eight hundred fifteen".