20112629 has 2 divisors, whose sum is σ = 20112630. Its totient is φ = 20112628.

The previous prime is 20112611. The next prime is 20112637. The reversal of 20112629 is 92621102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12439729 + 7672900 = 3527^2 + 2770^2 .

It is a cyclic number.

It is not a de Polignac number, because 20112629 - 2¹² = 20108533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056314 + 10056315.

It is an arithmetic number, because the mean of its divisors is an integer number (10056315).

Almost surely, 2^20112629 is an apocalyptic number.

It is an amenable number.

20112629 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112629 is an equidigital number, since it uses as much as digits as its factorization.

20112629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 20112629 is about 4484.7105815203. The cubic root of 20112629 is about 271.9503450664.

The spelling of 20112629 in words is "twenty million, one hundred twelve thousand, six hundred twenty-nine".