102045850 has 12 divisors (see below), whose sum is σ = 189805374. Its totient is φ = 40818320.

The previous prime is 102045821. The next prime is 102045857. The reversal of 102045850 is 58540201.

It can be written as a sum of positive squares in 3 ways, for example, as 43996689 + 58049161 = 6633^2 + 7619^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (102045857) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1020409 + ... + 1020508.

Almost surely, 2^102045850 is an apocalyptic number.

102045850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102045850 is a deficient number, since it is larger than the sum of its proper divisors (87759524).

102045850 is a wasteful number, since it uses less digits than its factorization.

102045850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040929 (or 2040924 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 102045850 is about 10101.7745965746. The cubic root of 102045850 is about 467.3028709340.

The spelling of 102045850 in words is "one hundred two million, forty-five thousand, eight hundred fifty".