102550140 has 288 divisors, whose sum is σ = 398361600. Its totient is φ = 21168000.

The previous prime is 102550121. The next prime is 102550153. The reversal of 102550140 is 41055201.

102550140 is a `hidden beast` number, since 102 + 550 + 14 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 679065 + ... + 679215.

It is an arithmetic number, because the mean of its divisors is an integer number (1383200).

Almost surely, 2^102550140 is an apocalyptic number.

102550140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102550140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199180800).

102550140 is an abundant number, since it is smaller than the sum of its proper divisors (295811460).

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

102550140 is a wasteful number, since it uses less digits than its factorization.

102550140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 102550140 is about 10126.7043010053. The cubic root of 102550140 is about 468.0713785497.

The spelling of 102550140 in words is "one hundred two million, five hundred fifty thousand, one hundred forty".