121154241 has 24 divisors (see below), whose sum is σ = 184141920. Its totient is φ = 70626816.

The previous prime is 121154233. The next prime is 121154251. The reversal of 121154241 is 142451121.

It is not a de Polignac number, because 121154241 - 2³ = 121154233 is a prime.

It is a super-2 number, since 2×121154241² = 29356700224572162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121154251) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3345 + ... + 15921.

It is an arithmetic number, because the mean of its divisors is an integer number (7672580).

Almost surely, 2^121154241 is an apocalyptic number.

It is an amenable number.

121154241 is a deficient number, since it is larger than the sum of its proper divisors (62987679).

121154241 is a wasteful number, since it uses less digits than its factorization.

121154241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12625 (or 12612 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 121154241 is about 11007.0087217191. The cubic root of 121154241 is about 494.8188174781.

The spelling of 121154241 in words is "one hundred twenty-one million, one hundred fifty-four thousand, two hundred forty-one".