121243454 has 16 divisors (see below), whose sum is σ = 184647600. Its totient is φ = 59699904.

The previous prime is 121243399. The next prime is 121243457. The reversal of 121243454 is 454342121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121243457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48077 + ... + 50535.

It is an arithmetic number, because the mean of its divisors is an integer number (11540475).

Almost surely, 2^121243454 is an apocalyptic number.

121243454 is a deficient number, since it is larger than the sum of its proper divisors (63404146).

121243454 is a wasteful number, since it uses less digits than its factorization.

121243454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827.

The product of its digits is 3840, while the sum is 26.

The square root of 121243454 is about 11011.0605302123. The cubic root of 121243454 is about 494.9402424206.

Adding to 121243454 its reverse (454342121), we get a palindrome (575585575).

The spelling of 121243454 in words is "one hundred twenty-one million, two hundred forty-three thousand, four hundred fifty-four".