445450121 has 8 divisors (see below), whose sum is σ = 468366600. Its totient is φ = 423037440.

The previous prime is 445450091. The next prime is 445450139. The reversal of 445450121 is 121054544.

It can be written as a sum of positive squares in 4 ways, for example, as 10310521 + 435139600 = 3211^2 + 20860^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 445450121 - 2¹⁰ = 445449097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445450021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124136 + ... + 127673.

It is an arithmetic number, because the mean of its divisors is an integer number (58545825).

Almost surely, 2^445450121 is an apocalyptic number.

It is an amenable number.

445450121 is a deficient number, since it is larger than the sum of its proper divisors (22916479).

445450121 is a wasteful number, since it uses less digits than its factorization.

445450121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251899.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 445450121 is about 21105.6893040715. The cubic root of 445450121 is about 763.7180008969.

The spelling of 445450121 in words is "four hundred forty-five million, four hundred fifty thousand, one hundred twenty-one".