121044445 has 8 divisors (see below), whose sum is σ = 145446840. Its totient is φ = 96706560.

The previous prime is 121044433. The next prime is 121044449. The reversal of 121044445 is 544440121.

It can be written as a sum of positive squares in 4 ways, for example, as 441 + 121044004 = 21^2 + 11002^2 .

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

It is not a de Polignac number, because 121044445 - 2¹⁵ = 121011677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121044449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11896 + ... + 19585.

It is an arithmetic number, because the mean of its divisors is an integer number (18180855).

Almost surely, 2^121044445 is an apocalyptic number.

It is an amenable number.

121044445 is a deficient number, since it is larger than the sum of its proper divisors (24402395).

121044445 is an equidigital number, since it uses as much as digits as its factorization.

121044445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32255.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 121044445 is about 11002.0200417923. The cubic root of 121044445 is about 494.6692958253.

Adding to 121044445 its reverse (544440121), we get a palindrome (665484566).

The spelling of 121044445 in words is "one hundred twenty-one million, forty-four thousand, four hundred forty-five".