121153244 has 12 divisors (see below), whose sum is σ = 217748664. Its totient is φ = 58939344.

The previous prime is 121153181. The next prime is 121153247. The reversal of 121153244 is 442351121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121153247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409154 + ... + 409449.

It is an arithmetic number, because the mean of its divisors is an integer number (18145722).

Almost surely, 2^121153244 is an apocalyptic number.

It is an amenable number.

121153244 is a deficient number, since it is larger than the sum of its proper divisors (96595420).

121153244 is a wasteful number, since it uses less digits than its factorization.

121153244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818644 (or 818642 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 121153244 is about 11006.9634323005. The cubic root of 121153244 is about 494.8174601567.

The spelling of 121153244 in words is "one hundred twenty-one million, one hundred fifty-three thousand, two hundred forty-four".