2155282 has 4 divisors (see below), whose sum is σ = 3232926. Its totient is φ = 1077640.

The previous prime is 2155273. The next prime is 2155291. The reversal of 2155282 is 2825512.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2155273) and next prime (2155291).

It can be written as a sum of positive squares in only one way, i.e., 1666681 + 488601 = 1291^2 + 699^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538819 + ... + 538822.

2^2155282 is an apocalyptic number.

2155282 is a deficient number, since it is larger than the sum of its proper divisors (1077644).

2155282 is a wasteful number, since it uses less digits than its factorization.

2155282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077643.

The product of its digits is 1600, while the sum is 25.

The square root of 2155282 is about 1468.0878720295. The cubic root of 2155282 is about 129.1718959150.

It can be divided in two parts, 215528 and 2, that multiplied together give a triangular number (431056 = T₉₂₈).

The spelling of 2155282 in words is "two million, one hundred fifty-five thousand, two hundred eighty-two".