20124733 has 2 divisors, whose sum is σ = 20124734. Its totient is φ = 20124732.

The previous prime is 20124661. The next prime is 20124757. The reversal of 20124733 is 33742102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16016004 + 4108729 = 4002^2 + 2027^2 .

It is a cyclic number.

It is not a de Polignac number, because 20124733 - 2¹⁷ = 19993661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20124763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10062366 + 10062367.

It is an arithmetic number, because the mean of its divisors is an integer number (10062367).

Almost surely, 2^20124733 is an apocalyptic number.

It is an amenable number.

20124733 is a deficient number, since it is larger than the sum of its proper divisors (1).

20124733 is an equidigital number, since it uses as much as digits as its factorization.

20124733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 20124733 is about 4486.0598524763. The cubic root of 20124733 is about 272.0048883565.

Adding to 20124733 its reverse (33742102), we get a palindrome (53866835).

The spelling of 20124733 in words is "twenty million, one hundred twenty-four thousand, seven hundred thirty-three".