121368755 has 4 divisors (see below), whose sum is σ = 145642512. Its totient is φ = 97095000.

The previous prime is 121368743. The next prime is 121368757. The reversal of 121368755 is 557863121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 121368755 - 2¹⁰ = 121367731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121368757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12136871 + ... + 12136880.

It is an arithmetic number, because the mean of its divisors is an integer number (36410628).

Almost surely, 2^121368755 is an apocalyptic number.

121368755 is a deficient number, since it is larger than the sum of its proper divisors (24273757).

121368755 is an equidigital number, since it uses as much as digits as its factorization.

121368755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24273756.

The product of its digits is 50400, while the sum is 38.

The square root of 121368755 is about 11016.7488398347. The cubic root of 121368755 is about 495.1106850398.

The spelling of 121368755 in words is "one hundred twenty-one million, three hundred sixty-eight thousand, seven hundred fifty-five".