2155662 has 12 divisors (see below), whose sum is σ = 4670640. Its totient is φ = 718548.

The previous prime is 2155661. The next prime is 2155667. The reversal of 2155662 is 2665512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59862 + ... + 59897.

It is an arithmetic number, because the mean of its divisors is an integer number (389220).

2^2155662 is an apocalyptic number.

2155662 is an abundant number, since it is smaller than the sum of its proper divisors (2514978).

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

2155662 is a wasteful number, since it uses less digits than its factorization.

2155662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119767 (or 119764 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 2155662 is about 1468.2172863715. The cubic root of 2155662 is about 129.1794869458.

The spelling of 2155662 in words is "two million, one hundred fifty-five thousand, six hundred sixty-two".