121824563 has 16 divisors (see below), whose sum is σ = 144418560. Its totient is φ = 100548000.

The previous prime is 121824553. The next prime is 121824631. The reversal of 121824563 is 365428121.

It is not a de Polignac number, because 121824563 - 2¹⁰ = 121823539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121824553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115388 + ... + 116438.

It is an arithmetic number, because the mean of its divisors is an integer number (9026160).

Almost surely, 2^121824563 is an apocalyptic number.

121824563 is a deficient number, since it is larger than the sum of its proper divisors (22593997).

121824563 is a wasteful number, since it uses less digits than its factorization.

121824563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658.

The product of its digits is 11520, while the sum is 32.

The square root of 121824563 is about 11037.4165002504. The cubic root of 121824563 is about 495.7297171962.

The spelling of 121824563 in words is "one hundred twenty-one million, eight hundred twenty-four thousand, five hundred sixty-three".