2097156 has 12 divisors (see below), whose sum is σ = 4893392. Its totient is φ = 699048.

The previous prime is 2097143. The next prime is 2097169. The reversal of 2097156 is 6517902.

It is an interprime number because it is at equal distance from previous prime (2097143) and next prime (2097169).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (2) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87370 + ... + 87393.

2^2097156 is an apocalyptic number.

It is an amenable number.

2097156 is an abundant number, since it is smaller than the sum of its proper divisors (2796236).

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

2097156 is a wasteful number, since it uses less digits than its factorization.

2097156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174770 (or 174768 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 2097156 is about 1448.1560689373. The cubic root of 2097156 is about 128.0000813802. Note that the first 4 decimals are identical.

The spelling of 2097156 in words is "two million, ninety-seven thousand, one hundred fifty-six".