2158264 has 8 divisors (see below), whose sum is σ = 4046760. Its totient is φ = 1079128.

The previous prime is 2158259. The next prime is 2158291. The reversal of 2158264 is 4628512.

2158264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a plaindrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134884 + ... + 134899.

It is an arithmetic number, because the mean of its divisors is an integer number (505845).

2^2158264 is an apocalyptic number.

It is an amenable number.

2158264 is a deficient number, since it is larger than the sum of its proper divisors (1888496).

2158264 is a wasteful number, since it uses less digits than its factorization.

2158264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269789 (or 269785 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 2158264 is about 1469.1031277620. The cubic root of 2158264 is about 129.2314415774.

It can be divided in two parts, 21 and 58264, that added together give a palindrome (58285).

The spelling of 2158264 in words is "two million, one hundred fifty-eight thousand, two hundred sixty-four".