20612126 has 16 divisors (see below), whose sum is σ = 32822496. Its totient is φ = 9674496.

The previous prime is 20612101. The next prime is 20612129. The reversal of 20612126 is 62121602.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20612098 and 20612107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20612129) 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, 21530 + ... + 22466.

It is an arithmetic number, because the mean of its divisors is an integer number (2051406).

Almost surely, 2^20612126 is an apocalyptic number.

20612126 is a deficient number, since it is larger than the sum of its proper divisors (12210370).

20612126 is a wasteful number, since it uses less digits than its factorization.

20612126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 20612126 is about 4540.0579291458. The cubic root of 20612126 is about 274.1832560286.

Adding to 20612126 its reverse (62121602), we get a palindrome (82733728).

The spelling of 20612126 in words is "twenty million, six hundred twelve thousand, one hundred twenty-six".