121244455 has 8 divisors (see below), whose sum is σ = 146335392. Its totient is φ = 96434208.

The previous prime is 121244423. The next prime is 121244521. The reversal of 121244455 is 554442121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121244455 - 2⁵ = 121244423 is a prime.

It is a Duffinian number.

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, 69219 + ... + 70948.

It is an arithmetic number, because the mean of its divisors is an integer number (18291924).

Almost surely, 2^121244455 is an apocalyptic number.

121244455 is a deficient number, since it is larger than the sum of its proper divisors (25090937).

121244455 is a wasteful number, since it uses less digits than its factorization.

121244455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140345.

The product of its digits is 6400, while the sum is 28.

The square root of 121244455 is about 11011.1059844141. The cubic root of 121244455 is about 494.9416045115.

Adding to 121244455 its reverse (554442121), we get a palindrome (675686576).

The spelling of 121244455 in words is "one hundred twenty-one million, two hundred forty-four thousand, four hundred fifty-five".