2270156 has 12 divisors (see below), whose sum is σ = 4540368. Its totient is φ = 972912.

The previous prime is 2270153. The next prime is 2270159. The reversal of 2270156 is 6510722.

It is an interprime number because it is at equal distance from previous prime (2270153) and next prime (2270159).

2270156 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2270153) 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, 40511 + ... + 40566.

It is an arithmetic number, because the mean of its divisors is an integer number (378364).

2^2270156 is an apocalyptic number.

It is an amenable number.

2270156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2270156 is a wasteful number, since it uses less digits than its factorization.

2270156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81088 (or 81086 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 2270156 is about 1506.7036868608. The cubic root of 2270156 is about 131.4271934773.

Adding to 2270156 its reverse (6510722), we get a palindrome (8780878).

The spelling of 2270156 in words is "two million, two hundred seventy thousand, one hundred fifty-six".