102235128 has 16 divisors (see below), whose sum is σ = 255587880. Its totient is φ = 34078368.

The previous prime is 102235079. The next prime is 102235139. The reversal of 102235128 is 821532201.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 4259797 = 102235128 / (1 + 0 + 2 + 2 + 3 + 5 + 1 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 102235098 and 102235107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2129875 + ... + 2129922.

Almost surely, 2^102235128 is an apocalyptic number.

It is an amenable number.

102235128 is an abundant number, since it is smaller than the sum of its proper divisors (153352752).

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

102235128 is a wasteful number, since it uses less digits than its factorization.

102235128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4259806 (or 4259802 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 102235128 is about 10111.1388082649. The cubic root of 102235128 is about 467.5916153965.

Adding to 102235128 its reverse (821532201), we get a palindrome (923767329).

It can be divided in two parts, 10223 and 5128, that added together give a palindrome (15351).

The spelling of 102235128 in words is "one hundred two million, two hundred thirty-five thousand, one hundred twenty-eight".