20126229 has 8 divisors (see below), whose sum is σ = 26879040. Its totient is φ = 13395456.

The previous prime is 20126221. The next prime is 20126231. The reversal of 20126229 is 92262102.

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

It is not a de Polignac number, because 20126229 - 2³ = 20126221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20126199 and 20126208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20126221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3244 + ... + 7125.

It is an arithmetic number, because the mean of its divisors is an integer number (3359880).

Almost surely, 2^20126229 is an apocalyptic number.

It is an amenable number.

20126229 is a deficient number, since it is larger than the sum of its proper divisors (6752811).

20126229 is a wasteful number, since it uses less digits than its factorization.

20126229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11019.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 20126229 is about 4486.2265881250. The cubic root of 20126229 is about 272.0116281433.

The spelling of 20126229 in words is "twenty million, one hundred twenty-six thousand, two hundred twenty-nine".