102445166 has 4 divisors (see below), whose sum is σ = 153667752. Its totient is φ = 51222582.

The previous prime is 102445163. The next prime is 102445171. The reversal of 102445166 is 661544201.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102445163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25611290 + ... + 25611293.

It is an arithmetic number, because the mean of its divisors is an integer number (38416938).

Almost surely, 2^102445166 is an apocalyptic number.

102445166 is a deficient number, since it is larger than the sum of its proper divisors (51222586).

102445166 is an equidigital number, since it uses as much as digits as its factorization.

102445166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51222585.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 102445166 is about 10121.5199451466. The cubic root of 102445166 is about 467.9116124750.

Adding to 102445166 its reverse (661544201), we get a palindrome (763989367).

The spelling of 102445166 in words is "one hundred two million, four hundred forty-five thousand, one hundred sixty-six".