44121563 has 2 divisors, whose sum is σ = 44121564. Its totient is φ = 44121562.

The previous prime is 44121559. The next prime is 44121589. The reversal of 44121563 is 36512144.

It is an a-pointer prime, because the next prime (44121589) can be obtained adding 44121563 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44121563 - 2² = 44121559 is a prime.

It is not a weakly prime, because it can be changed into another prime (44121593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22060781 + 22060782.

It is an arithmetic number, because the mean of its divisors is an integer number (22060782).

Almost surely, 2^44121563 is an apocalyptic number.

44121563 is a deficient number, since it is larger than the sum of its proper divisors (1).

44121563 is an equidigital number, since it uses as much as digits as its factorization.

44121563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 26.

The square root of 44121563 is about 6642.4064163524. The cubic root of 44121563 is about 353.3596555882.

The spelling of 44121563 in words is "forty-four million, one hundred twenty-one thousand, five hundred sixty-three".