424455121 has 4 divisors (see below), whose sum is σ = 424610100. Its totient is φ = 424300144.

The previous prime is 424455113. The next prime is 424455127. The reversal of 424455121 is 121554424.

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

It can be written as a sum of positive squares in 2 ways, for example, as 233020225 + 191434896 = 15265^2 + 13836^2 .

It is a cyclic number.

It is not a de Polignac number, because 424455121 - 2³ = 424455113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 424455121.

It is not an unprimeable number, because it can be changed into a prime (424455127) 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, 73306 + ... + 78883.

It is an arithmetic number, because the mean of its divisors is an integer number (106152525).

Almost surely, 2^424455121 is an apocalyptic number.

It is an amenable number.

424455121 is a deficient number, since it is larger than the sum of its proper divisors (154979).

424455121 is a wasteful number, since it uses less digits than its factorization.

424455121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154978.

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

The square root of 424455121 is about 20602.3086327722. The cubic root of 424455121 is about 751.5258541794.

The spelling of 424455121 in words is "four hundred twenty-four million, four hundred fifty-five thousand, one hundred twenty-one".