102168450 has 72 divisors (see below), whose sum is σ = 283994100. Its totient is φ = 26302080.

The previous prime is 102168439. The next prime is 102168463. The reversal of 102168450 is 54861201.

It can be written as a sum of positive squares in 6 ways, for example, as 19158129 + 83010321 = 4377^2 + 9111^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9136 + ... + 16964.

Almost surely, 2^102168450 is an apocalyptic number.

102168450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 102168450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141997050).

102168450 is an abundant number, since it is smaller than the sum of its proper divisors (181825650).

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

102168450 is a wasteful number, since it uses less digits than its factorization.

102168450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7876 (or 7868 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 102168450 is about 10107.8410157659. The cubic root of 102168450 is about 467.4899384911.

The spelling of 102168450 in words is "one hundred two million, one hundred sixty-eight thousand, four hundred fifty".