2140156 has 12 divisors (see below), whose sum is σ = 3763368. Its totient is φ = 1064912.

The previous prime is 2140139. The next prime is 2140157. The reversal of 2140156 is 6510412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271 + ... + 2086.

It is an arithmetic number, because the mean of its divisors is an integer number (313614).

2^2140156 is an apocalyptic number.

It is an amenable number.

2140156 is a deficient number, since it is larger than the sum of its proper divisors (1623212).

2140156 is a wasteful number, since it uses less digits than its factorization.

2140156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2588 (or 2586 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2140156 is about 1462.9272025634. The cubic root of 2140156 is about 128.8690054984.

Adding to 2140156 its reverse (6510412), we get a palindrome (8650568).

The spelling of 2140156 in words is "two million, one hundred forty thousand, one hundred fifty-six".