2156337 has 12 divisors (see below), whose sum is σ = 3129984. Its totient is φ = 1430520.

The previous prime is 2156317. The next prime is 2156339. The reversal of 2156337 is 7336512.

It is a happy number.

2156337 is a `hidden beast` number, since 21 + 5 + 633 + 7 = 666.

It is not a de Polignac number, because 2156337 - 2¹⁴ = 2139953 is a prime.

2156337 is a lucky number.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 2156337.

It is not an unprimeable number, because it can be changed into a prime (2156339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1912 + ... + 2822.

It is an arithmetic number, because the mean of its divisors is an integer number (260832).

2^2156337 is an apocalyptic number.

It is an amenable number.

2156337 is a deficient number, since it is larger than the sum of its proper divisors (973647).

2156337 is a wasteful number, since it uses less digits than its factorization.

2156337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180 (or 1177 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 2156337 is about 1468.4471389873. The cubic root of 2156337 is about 129.1929688142.

The spelling of 2156337 in words is "two million, one hundred fifty-six thousand, three hundred thirty-seven".