102056136 has 128 divisors (see below), whose sum is σ = 318366720. Its totient is φ = 26544384.

The previous prime is 102056131. The next prime is 102056147. The reversal of 102056136 is 631650201.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (102056131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180991 + ... + 181553.

It is an arithmetic number, because the mean of its divisors is an integer number (2487240).

Almost surely, 2^102056136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102056136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159183360).

102056136 is an abundant number, since it is smaller than the sum of its proper divisors (216310584).

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

102056136 is a wasteful number, since it uses less digits than its factorization.

102056136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 102056136 is about 10102.2837022131. The cubic root of 102056136 is about 467.3185714445.

The spelling of 102056136 in words is "one hundred two million, fifty-six thousand, one hundred thirty-six".