122153449 has 16 divisors (see below), whose sum is σ = 141480000. Its totient is φ = 104232960.

The previous prime is 122153443. The next prime is 122153491. The reversal of 122153449 is 944351221.

It is a cyclic number.

It is not a de Polignac number, because 122153449 - 2⁷ = 122153321 is a prime.

It is a Duffinian number.

122153449 is a Rhonda number in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 122153449.

It is not an unprimeable number, because it can be changed into a prime (122153443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97177 + ... + 98425.

It is an arithmetic number, because the mean of its divisors is an integer number (8842500).

Almost surely, 2^122153449 is an apocalyptic number.

It is an amenable number.

122153449 is a deficient number, since it is larger than the sum of its proper divisors (19326551).

122153449 is a wasteful number, since it uses less digits than its factorization.

122153449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800.

The product of its digits is 8640, while the sum is 31.

The square root of 122153449 is about 11052.3051441769. The cubic root of 122153449 is about 496.1754184097.

The spelling of 122153449 in words is "one hundred twenty-two million, one hundred fifty-three thousand, four hundred forty-nine".