2103549156 has 24 divisors (see below), whose sum is σ = 5453646240. Its totient is φ = 701183016.

The previous prime is 2103549131. The next prime is 2103549167. The reversal of 2103549156 is 6519453012.

2103549156 is a `hidden beast` number, since 2 + 103 + 549 + 1 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2103549156.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9738546 + ... + 9738761.

It is an arithmetic number, because the mean of its divisors is an integer number (227235260).

Almost surely, 2^2103549156 is an apocalyptic number.

It is an amenable number.

2103549156 is an abundant number, since it is smaller than the sum of its proper divisors (3350097084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2103549156 is a wasteful number, since it uses less digits than its factorization.

2103549156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19477320 (or 19477312 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 2103549156 is about 45864.4650682857. The cubic root of 2103549156 is about 1281.3001835874.

The spelling of 2103549156 in words is "two billion, one hundred three million, five hundred forty-nine thousand, one hundred fifty-six".