454020121 has 4 divisors (see below), whose sum is σ = 455695744. Its totient is φ = 452344500.

The previous prime is 454020107. The next prime is 454020157. The reversal of 454020121 is 121020454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-454020121 is a prime.

It is a super-2 number, since 2×454020121² = 412268540545709282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (454020521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837405 + ... + 837946.

It is an arithmetic number, because the mean of its divisors is an integer number (113923936).

Almost surely, 2^454020121 is an apocalyptic number.

It is an amenable number.

454020121 is a deficient number, since it is larger than the sum of its proper divisors (1675623).

454020121 is a wasteful number, since it uses less digits than its factorization.

454020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675622.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 454020121 is about 21307.7479100913. The cubic root of 454020121 is about 768.5846384052.

Adding to 454020121 its reverse (121020454), we get a palindrome (575040575).

The spelling of 454020121 in words is "four hundred fifty-four million, twenty thousand, one hundred twenty-one".