20700126 has 24 divisors (see below), whose sum is σ = 46298304. Its totient is φ = 6677280.

The previous prime is 20700109. The next prime is 20700143. The reversal of 20700126 is 62100702.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20700109) and next prime (20700143).

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 = 20700099 and 20700108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17991 + ... + 19106.

It is an arithmetic number, because the mean of its divisors is an integer number (1929096).

Almost surely, 2^20700126 is an apocalyptic number.

20700126 is an abundant number, since it is smaller than the sum of its proper divisors (25598178).

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

20700126 is a wasteful number, since it uses less digits than its factorization.

20700126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37136 (or 37133 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 20700126 is about 4549.7391133998. The cubic root of 20700126 is about 274.5728951299.

Adding to 20700126 its reverse (62100702), we get a palindrome (82800828).

The spelling of 20700126 in words is "twenty million, seven hundred thousand, one hundred twenty-six".