102869550 has 216 divisors, whose sum is σ = 338500656. Its totient is φ = 21934080.

The previous prime is 102869537. The next prime is 102869581. The reversal of 102869550 is 55968201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 910294 + ... + 910406.

Almost surely, 2^102869550 is an apocalyptic number.

102869550 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 102869550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169250328).

102869550 is an abundant number, since it is smaller than the sum of its proper divisors (235631106).

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

102869550 is a wasteful number, since it uses less digits than its factorization.

102869550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 102869550 is about 10142.4627186892. The cubic root of 102869550 is about 468.5568377461.

The spelling of 102869550 in words is "one hundred two million, eight hundred sixty-nine thousand, five hundred fifty".