121522149 has 24 divisors (see below), whose sum is σ = 201219200. Its totient is φ = 69229728.

The previous prime is 121522129. The next prime is 121522153. The reversal of 121522149 is 941225121.

121522149 is a `hidden beast` number, since 121 + 522 + 14 + 9 = 666.

It is not a de Polignac number, because 121522149 - 2⁷ = 121522021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121522129) 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 23 ways as a sum of consecutive naturals, for example, 19224 + ... + 24750.

Almost surely, 2^121522149 is an apocalyptic number.

It is an amenable number.

121522149 is a deficient number, since it is larger than the sum of its proper divisors (79697051).

121522149 is a wasteful number, since it uses less digits than its factorization.

121522149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5889 (or 5886 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 121522149 is about 11023.7084957831. The cubic root of 121522149 is about 495.3191819610.

The spelling of 121522149 in words is "one hundred twenty-one million, five hundred twenty-two thousand, one hundred forty-nine".