2113156 has 6 divisors (see below), whose sum is σ = 3698030. Its totient is φ = 1056576.

The previous prime is 2113147. The next prime is 2113159. The reversal of 2113156 is 6513112.

It can be written as a sum of positive squares in only one way, i.e., 1144900 + 968256 = 1070^2 + 984^2 .

It is not an unprimeable number, because it can be changed into a prime (2113159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264141 + ... + 264148.

2^2113156 is an apocalyptic number.

It is an amenable number.

2113156 is a deficient number, since it is larger than the sum of its proper divisors (1584874).

2113156 is a wasteful number, since it uses less digits than its factorization.

2113156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528293 (or 528291 counting only the distinct ones).

The product of its digits is 180, while the sum is 19.

The square root of 2113156 is about 1453.6698387185. The cubic root of 2113156 is about 128.3247774510.

Adding to 2113156 its reverse (6513112), we get a palindrome (8626268).

The spelling of 2113156 in words is "two million, one hundred thirteen thousand, one hundred fifty-six".