448123121 has 4 divisors (see below), whose sum is σ = 449741172. Its totient is φ = 446505072.

The previous prime is 448123069. The next prime is 448123127. The reversal of 448123121 is 121321844.

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 113635600 + 334487521 = 10660^2 + 18289^2 .

It is a cyclic number.

It is not a de Polignac number, because 448123121 - 2⁶ = 448123057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448123127) 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, 808610 + ... + 809163.

It is an arithmetic number, because the mean of its divisors is an integer number (112435293).

Almost surely, 2^448123121 is an apocalyptic number.

It is an amenable number.

448123121 is a deficient number, since it is larger than the sum of its proper divisors (1618051).

448123121 is a wasteful number, since it uses less digits than its factorization.

448123121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618050.

The product of its digits is 1536, while the sum is 26.

The square root of 448123121 is about 21168.9187489583. The cubic root of 448123121 is about 765.2425625220.

Adding to 448123121 its reverse (121321844), we get a palindrome (569444965).

The spelling of 448123121 in words is "four hundred forty-eight million, one hundred twenty-three thousand, one hundred twenty-one".