2155262234 has 4 divisors (see below), whose sum is σ = 3232893354. Its totient is φ = 1077631116.

The previous prime is 2155262233. The next prime is 2155262237. The reversal of 2155262234 is 4322625512.

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

It can be written as a sum of positive squares in only one way, i.e., 2069977009 + 85285225 = 45497^2 + 9235^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2155262234.

It is not an unprimeable number, because it can be changed into a prime (2155262233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538815557 + ... + 538815560.

Almost surely, 2^2155262234 is an apocalyptic number.

2155262234 is a deficient number, since it is larger than the sum of its proper divisors (1077631120).

2155262234 is a wasteful number, since it uses less digits than its factorization.

2155262234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077631119.

The product of its digits is 28800, while the sum is 32.

The square root of 2155262234 is about 46424.8019274181. The cubic root of 2155262234 is about 1291.7150103714.

Adding to 2155262234 its reverse (4322625512), we get a palindrome (6477887746).

The spelling of 2155262234 in words is "two billion, one hundred fifty-five million, two hundred sixty-two thousand, two hundred thirty-four".