2185256104 has 16 divisors (see below), whose sum is σ = 4116777120. Its totient is φ = 1087448880.

The previous prime is 2185256093. The next prime is 2185256119. The reversal of 2185256104 is 4016525812.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2185256104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645604 + ... + 648979.

It is an arithmetic number, because the mean of its divisors is an integer number (257298570).

Almost surely, 2^2185256104 is an apocalyptic number.

It is an amenable number.

2185256104 is a deficient number, since it is larger than the sum of its proper divisors (1931521016).

2185256104 is a wasteful number, since it uses less digits than its factorization.

2185256104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294800 (or 1294796 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 2185256104 is about 46746.7229225750. The cubic root of 2185256104 is about 1297.6795101123.

The spelling of 2185256104 in words is "two billion, one hundred eighty-five million, two hundred fifty-six thousand, one hundred four".