2000156 has 12 divisors (see below), whose sum is σ = 3510192. Its totient is φ = 997248.

The previous prime is 2000153. The next prime is 2000177. The reversal of 2000156 is 6510002.

It is a self number, because there is not a number n which added to its sum of digits gives 2000156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000153) 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, 2321 + ... + 3063.

It is an arithmetic number, because the mean of its divisors is an integer number (292516).

2^2000156 is an apocalyptic number.

It is an amenable number.

2000156 is a deficient number, since it is larger than the sum of its proper divisors (1510036).

2000156 is a wasteful number, since it uses less digits than its factorization.

2000156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420 (or 1418 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2000156 is about 1414.2687156266. The cubic root of 2000156 is about 125.9953806991.

Adding to 2000156 its reverse (6510002), we get a palindrome (8510158).

The spelling of 2000156 in words is "two million, one hundred fifty-six", and thus it is an aban number.