121044455 has 24 divisors (see below), whose sum is σ = 169462368. Its totient is φ = 82759488.

The previous prime is 121044449. The next prime is 121044479. The reversal of 121044455 is 554440121.

It is not a de Polignac number, because 121044455 - 2¹⁰ = 121043431 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 23 ways as a sum of consecutive naturals, for example, 136022 + ... + 136908.

It is an arithmetic number, because the mean of its divisors is an integer number (7060932).

Almost surely, 2^121044455 is an apocalyptic number.

121044455 is a deficient number, since it is larger than the sum of its proper divisors (48417913).

121044455 is an equidigital number, since it uses as much as digits as its factorization.

121044455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463 (or 1456 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 121044455 is about 11002.0204962543. The cubic root of 121044455 is about 494.6693094475.

Adding to 121044455 its reverse (554440121), we get a palindrome (675484576).

The spelling of 121044455 in words is "one hundred twenty-one million, forty-four thousand, four hundred fifty-five".