20601126 has 48 divisors (see below), whose sum is σ = 54940704. Its totient is φ = 5432832.

The previous prime is 20601079. The next prime is 20601157. The reversal of 20601126 is 62110602.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20601099 and 20601108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4651 + ... + 7926.

It is an arithmetic number, because the mean of its divisors is an integer number (1144598).

Almost surely, 2^20601126 is an apocalyptic number.

20601126 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20601126 is an abundant number, since it is smaller than the sum of its proper divisors (34339578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20601126 is a wasteful number, since it uses less digits than its factorization.

20601126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12605 (or 12602 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 20601126 is about 4538.8463291898. The cubic root of 20601126 is about 274.1344732152.

Adding to 20601126 its reverse (62110602), we get a palindrome (82711728).

The spelling of 20601126 in words is "twenty million, six hundred one thousand, one hundred twenty-six".