122724895 has 16 divisors (see below), whose sum is σ = 161763840. Its totient is φ = 88966944.

The previous prime is 122724851. The next prime is 122724913. The reversal of 122724895 is 598427221.

It is not a de Polignac number, because 122724895 - 2⁹ = 122724383 is a prime.

It is a super-2 number, since 2×122724895² = 30122799705522050, which contains 22 as substring.

It is a congruent number.

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, 25899 + ... + 30268.

It is an arithmetic number, because the mean of its divisors is an integer number (10110240).

Almost surely, 2^122724895 is an apocalyptic number.

122724895 is a deficient number, since it is larger than the sum of its proper divisors (39038945).

122724895 is a wasteful number, since it uses less digits than its factorization.

122724895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56214.

The product of its digits is 80640, while the sum is 40.

The square root of 122724895 is about 11078.1268723553. The cubic root of 122724895 is about 496.9479343645.

The spelling of 122724895 in words is "one hundred twenty-two million, seven hundred twenty-four thousand, eight hundred ninety-five".