121150255 has 24 divisors (see below), whose sum is σ = 154020672. Its totient is φ = 91437696.

The previous prime is 121150229. The next prime is 121150259. The reversal of 121150255 is 552051121.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-121150255 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 (121150259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197329 + ... + 197941.

It is an arithmetic number, because the mean of its divisors is an integer number (6417528).

Almost surely, 2^121150255 is an apocalyptic number.

121150255 is a deficient number, since it is larger than the sum of its proper divisors (32870417).

121150255 is an equidigital number, since it uses as much as digits as its factorization.

121150255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 121150255 is about 11006.8276537793. The cubic root of 121150255 is about 494.8133908709.

The spelling of 121150255 in words is "one hundred twenty-one million, one hundred fifty thousand, two hundred fifty-five".