2155882 has 8 divisors (see below), whose sum is σ = 3374496. Its totient is φ = 1031052.

The previous prime is 2155877. The next prime is 2155883. The reversal of 2155882 is 2885512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2155883) 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, 23388 + ... + 23479.

It is an arithmetic number, because the mean of its divisors is an integer number (421812).

2^2155882 is an apocalyptic number.

2155882 is a deficient number, since it is larger than the sum of its proper divisors (1218614).

2155882 is a wasteful number, since it uses less digits than its factorization.

2155882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46892.

The product of its digits is 6400, while the sum is 31.

The square root of 2155882 is about 1468.2922052507. The cubic root of 2155882 is about 129.1838813453.

The spelling of 2155882 in words is "two million, one hundred fifty-five thousand, eight hundred eighty-two".