128769102 has 224 divisors, whose sum is σ = 382777344. Its totient is φ = 31492800.

The previous prime is 128769083. The next prime is 128769103. The reversal of 128769102 is 201967821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128769103) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 3480228 + ... + 3480264.

Almost surely, 2^128769102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128769102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191388672).

128769102 is an abundant number, since it is smaller than the sum of its proper divisors (254008242).

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

128769102 is a wasteful number, since it uses less digits than its factorization.

128769102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 128769102 is about 11347.6474213821. The cubic root of 128769102 is about 504.9757881409.

The spelling of 128769102 in words is "one hundred twenty-eight million, seven hundred sixty-nine thousand, one hundred two".