2203161256 has 16 divisors (see below), whose sum is σ = 4131620640. Its totient is φ = 1101395760.

The previous prime is 2203161251. The next prime is 2203161277. The reversal of 2203161256 is 6521613022.

It is not an unprimeable number, because it can be changed into a prime (2203161251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36621 + ... + 75811.

It is an arithmetic number, because the mean of its divisors is an integer number (258226290).

Almost surely, 2^2203161256 is an apocalyptic number.

It is an amenable number.

2203161256 is a deficient number, since it is larger than the sum of its proper divisors (1928459384).

2203161256 is a wasteful number, since it uses less digits than its factorization.

2203161256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46224 (or 46220 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 2203161256 is about 46937.8446032623. The cubic root of 2203161256 is about 1301.2141036340.

Adding to 2203161256 its reverse (6521613022), we get a palindrome (8724774278).

The spelling of 2203161256 in words is "two billion, two hundred three million, one hundred sixty-one thousand, two hundred fifty-six".