122621149 has 8 divisors (see below), whose sum is σ = 140212160. Its totient is φ = 105048576.

The previous prime is 122621137. The next prime is 122621179. The reversal of 122621149 is 941126221.

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 122621149 - 2⁹ = 122620637 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 (122621179) 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, 15517 + ... + 22045.

It is an arithmetic number, because the mean of its divisors is an integer number (17526520).

Almost surely, 2^122621149 is an apocalyptic number.

It is an amenable number.

122621149 is a deficient number, since it is larger than the sum of its proper divisors (17591011).

122621149 is an equidigital number, since it uses as much as digits as its factorization.

122621149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9219.

The product of its digits is 1728, while the sum is 28.

The square root of 122621149 is about 11073.4434120557. The cubic root of 122621149 is about 496.8078625531.

It can be divided in two parts, 12 and 2621149, that added together give a square (2621161 = 1619²).

The spelling of 122621149 in words is "one hundred twenty-two million, six hundred twenty-one thousand, one hundred forty-nine".