2168955 has 24 divisors (see below), whose sum is σ = 3795792. Its totient is φ = 1145664.

The previous prime is 2168953. The next prime is 2168987. The reversal of 2168955 is 5598612.

2168955 = T₂₅₆ + T₂₅₇ + ... + T₃₀₉.

It is a happy number.

It is not a de Polignac number, because 2168955 - 2¹ = 2168953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2168951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6912 + ... + 7218.

It is an arithmetic number, because the mean of its divisors is an integer number (158158).

2^2168955 is an apocalyptic number.

2168955 is a deficient number, since it is larger than the sum of its proper divisors (1626837).

2168955 is a wasteful number, since it uses less digits than its factorization.

2168955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 472 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 2168955 is about 1472.7372474410. The cubic root of 2168955 is about 129.4444736435. Note that the first 4 decimals are identical.

The spelling of 2168955 in words is "two million, one hundred sixty-eight thousand, nine hundred fifty-five".