2151126 has 24 divisors (see below), whose sum is σ = 4702464. Its totient is φ = 710640.

The previous prime is 2151119. The next prime is 2151137. The reversal of 2151126 is 6211512.

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 = 2151099 and 2151108.

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, 1816 + ... + 2756.

It is an arithmetic number, because the mean of its divisors is an integer number (195936).

2^2151126 is an apocalyptic number.

2151126 is an abundant number, since it is smaller than the sum of its proper divisors (2551338).

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

2151126 is a wasteful number, since it uses less digits than its factorization.

2151126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076 (or 1073 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 2151126 is about 1466.6717424155. The cubic root of 2151126 is about 129.0888157073.

Adding to 2151126 its reverse (6211512), we get a palindrome (8362638).

The spelling of 2151126 in words is "two million, one hundred fifty-one thousand, one hundred twenty-six".