128137962 has 8 divisors (see below), whose sum is σ = 256275936. Its totient is φ = 42712652.

The previous prime is 128137951. The next prime is 128137963. The reversal of 128137962 is 269731821.

It is a sphenic number, since it is the product of 3 distinct primes.

128137962 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 128137962.

It is not an unprimeable number, because it can be changed into a prime (128137963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10678158 + ... + 10678169.

It is an arithmetic number, because the mean of its divisors is an integer number (32034492).

Almost surely, 2^128137962 is an apocalyptic number.

128137962 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128137962 is a wasteful number, since it uses less digits than its factorization.

128137962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21356332.

The product of its digits is 36288, while the sum is 39.

The square root of 128137962 is about 11319.8039735677. The cubic root of 128137962 is about 504.1494187240.

The spelling of 128137962 in words is "one hundred twenty-eight million, one hundred thirty-seven thousand, nine hundred sixty-two".