121863288 has 32 divisors (see below), whose sum is σ = 306248400. Its totient is φ = 40409088.

The previous prime is 121863257. The next prime is 121863341. The reversal of 121863288 is 882368121.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8523 + ... + 17786.

Almost surely, 2^121863288 is an apocalyptic number.

It is an amenable number.

121863288 is an abundant number, since it is smaller than the sum of its proper divisors (184385112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121863288 is a wasteful number, since it uses less digits than its factorization.

121863288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26511 (or 26507 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 121863288 is about 11039.1706210204. The cubic root of 121863288 is about 495.7822383492.

The spelling of 121863288 in words is "one hundred twenty-one million, eight hundred sixty-three thousand, two hundred eighty-eight".