128964962 has 12 divisors (see below), whose sum is σ = 225030870. Its totient is φ = 55270656.

The previous prime is 128964949. The next prime is 128965003. The reversal of 128964962 is 269469821.

It can be written as a sum of positive squares in only one way, i.e., 121242121 + 7722841 = 11011^2 + 2779^2 .

It is a super-2 number, since 2×128964962² = 33263922847322888, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 657887 + ... + 658082.

Almost surely, 2^128964962 is an apocalyptic number.

128964962 is a deficient number, since it is larger than the sum of its proper divisors (96065908).

128964962 is a wasteful number, since it uses less digits than its factorization.

128964962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315985 (or 1315978 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The square root of 128964962 is about 11356.2741249056. The cubic root of 128964962 is about 505.2316840390.

The spelling of 128964962 in words is "one hundred twenty-eight million, nine hundred sixty-four thousand, nine hundred sixty-two".