122254639 has 8 divisors (see below), whose sum is σ = 131909792. Its totient is φ = 112635360.

The previous prime is 122254619. The next prime is 122254651. The reversal of 122254639 is 936452221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122254639 - 2⁹ = 122254127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122254609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1659 + ... + 15724.

It is an arithmetic number, because the mean of its divisors is an integer number (16488724).

Almost surely, 2^122254639 is an apocalyptic number.

122254639 is a deficient number, since it is larger than the sum of its proper divisors (9655153).

122254639 is a wasteful number, since it uses less digits than its factorization.

122254639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17937.

The product of its digits is 25920, while the sum is 34.

The square root of 122254639 is about 11056.8819745894. The cubic root of 122254639 is about 496.3123885718.

The spelling of 122254639 in words is "one hundred twenty-two million, two hundred fifty-four thousand, six hundred thirty-nine".