2155304 has 8 divisors (see below), whose sum is σ = 4041210. Its totient is φ = 1077648.

The previous prime is 2155297. The next prime is 2155319. The reversal of 2155304 is 4035512.

It can be written as a sum of positive squares in only one way, i.e., 1214404 + 940900 = 1102^2 + 970^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134699 + ... + 134714.

2^2155304 is an apocalyptic number.

It is an amenable number.

2155304 is a deficient number, since it is larger than the sum of its proper divisors (1885906).

2155304 is a wasteful number, since it uses less digits than its factorization.

2155304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269419 (or 269415 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 2155304 is about 1468.0953647499. The cubic root of 2155304 is about 129.1723354201.

The spelling of 2155304 in words is "two million, one hundred fifty-five thousand, three hundred four".