128137302 has 24 divisors (see below), whose sum is σ = 287914536. Its totient is φ = 42712272.

The previous prime is 128137297. The next prime is 128137337. The reversal of 128137302 is 203731821.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131343 + ... + 132314.

It is an arithmetic number, because the mean of its divisors is an integer number (11996439).

Almost surely, 2^128137302 is an apocalyptic number.

128137302 is an abundant number, since it is smaller than the sum of its proper divisors (159777234).

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

128137302 is an equidigital number, since it uses as much as digits as its factorization.

128137302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263674 (or 263662 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 128137302 is about 11319.7748210819. The cubic root of 128137302 is about 504.1485531487.

It can be divided in two parts, 1281 and 37302, that added together give a palindrome (38583).

The spelling of 128137302 in words is "one hundred twenty-eight million, one hundred thirty-seven thousand, three hundred two".