121105454 has 4 divisors (see below), whose sum is σ = 181658184. Its totient is φ = 60552726.

The previous prime is 121105447. The next prime is 121105459. The reversal of 121105454 is 454501121.

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

It is a super-2 number, since 2×121105454² = 29333061977092232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121105459) 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 as a sum of consecutive naturals, namely, 30276362 + ... + 30276365.

It is an arithmetic number, because the mean of its divisors is an integer number (45414546).

Almost surely, 2^121105454 is an apocalyptic number.

121105454 is a deficient number, since it is larger than the sum of its proper divisors (60552730).

121105454 is an equidigital number, since it uses as much as digits as its factorization.

121105454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60552729.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 121105454 is about 11004.7923197124. The cubic root of 121105454 is about 494.7523898496.

Adding to 121105454 its reverse (454501121), we get a palindrome (575606575).

The spelling of 121105454 in words is "one hundred twenty-one million, one hundred five thousand, four hundred fifty-four".