102445856 has 24 divisors (see below), whose sum is σ = 202425804. Its totient is φ = 51036160.

The previous prime is 102445787. The next prime is 102445883. The reversal of 102445856 is 658544201.

It can be written as a sum of positive squares in 2 ways, for example, as 97693456 + 4752400 = 9884^2 + 2180^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3296 + ... + 14688.

Almost surely, 2^102445856 is an apocalyptic number.

102445856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

102445856 is a deficient number, since it is larger than the sum of its proper divisors (99979948).

102445856 is a wasteful number, since it uses less digits than its factorization.

102445856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11684 (or 11676 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 102445856 is about 10121.5540308789. The cubic root of 102445856 is about 467.9126629826.

It can be divided in two parts, 102445 and 856, that added together give a palindrome (103301).

The spelling of 102445856 in words is "one hundred two million, four hundred forty-five thousand, eight hundred fifty-six".