2203856545 has 16 divisors (see below), whose sum is σ = 2887757568. Its totient is φ = 1601299840.

The previous prime is 2203856539. The next prime is 2203856579. The reversal of 2203856545 is 5456583022.

It is a happy number.

It is not a de Polignac number, because 2203856545 - 2²¹ = 2201759393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2203856498 and 2203856507.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42072 + ... + 78598.

It is an arithmetic number, because the mean of its divisors is an integer number (180484848).

Almost surely, 2^2203856545 is an apocalyptic number.

It is an amenable number.

2203856545 is a deficient number, since it is larger than the sum of its proper divisors (683901023).

2203856545 is a wasteful number, since it uses less digits than its factorization.

2203856545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37640.

The product of its (nonzero) digits is 288000, while the sum is 40.

The square root of 2203856545 is about 46945.2505052428. The cubic root of 2203856545 is about 1301.3509713122.

The spelling of 2203856545 in words is "two billion, two hundred three million, eight hundred fifty-six thousand, five hundred forty-five".