2285121956 has 24 divisors (see below), whose sum is σ = 4310234040. Its totient is φ = 1053775872.

The previous prime is 2285121947. The next prime is 2285121973. The reversal of 2285121956 is 6591215822.

It can be written as a sum of positive squares in 4 ways, for example, as 507150400 + 1777971556 = 22520^2 + 42166^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 45230 + ... + 81338.

It is an arithmetic number, because the mean of its divisors is an integer number (179593085).

Almost surely, 2^2285121956 is an apocalyptic number.

2285121956 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2285121956 is a deficient number, since it is larger than the sum of its proper divisors (2025112084).

2285121956 is a wasteful number, since it uses less digits than its factorization.

2285121956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37343 (or 37341 counting only the distinct ones).

The product of its digits is 86400, while the sum is 41.

The square root of 2285121956 is about 47802.9492395605. The cubic root of 2285121956 is about 1317.1537147523.

The spelling of 2285121956 in words is "two billion, two hundred eighty-five million, one hundred twenty-one thousand, nine hundred fifty-six".