128360956 has 24 divisors (see below), whose sum is σ = 232735104. Its totient is φ = 61880640.

The previous prime is 128360951. The next prime is 128360957. The reversal of 128360956 is 659063821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128360951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34566 + ... + 38098.

It is an arithmetic number, because the mean of its divisors is an integer number (9697296).

Almost surely, 2^128360956 is an apocalyptic number.

It is an amenable number.

128360956 is a deficient number, since it is larger than the sum of its proper divisors (104374148).

128360956 is a wasteful number, since it uses less digits than its factorization.

128360956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3861 (or 3859 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 128360956 is about 11329.6494208779. The cubic root of 128360956 is about 504.4417004227.

The spelling of 128360956 in words is "one hundred twenty-eight million, three hundred sixty thousand, nine hundred fifty-six".