121954288 has 10 divisors (see below), whose sum is σ = 236286464. Its totient is φ = 60977136.

The previous prime is 121954267. The next prime is 121954289. The reversal of 121954288 is 882459121.

It is a self number, because there is not a number n which added to its sum of digits gives 121954288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121954289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3811056 + ... + 3811087.

Almost surely, 2^121954288 is an apocalyptic number.

It is an amenable number.

121954288 is a deficient number, since it is larger than the sum of its proper divisors (114332176).

121954288 is an equidigital number, since it uses as much as digits as its factorization.

121954288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7622151 (or 7622145 counting only the distinct ones).

The product of its digits is 46080, while the sum is 40.

The square root of 121954288 is about 11043.2915383051. The cubic root of 121954288 is about 495.9056141941.

The spelling of 121954288 in words is "one hundred twenty-one million, nine hundred fifty-four thousand, two hundred eighty-eight".