128981062 has 8 divisors (see below), whose sum is σ = 221110416. Its totient is φ = 55277592.

The previous prime is 128981059. The next prime is 128981081. The reversal of 128981062 is 260189821.

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

It is a super-2 number, since 2×128981062² = 33272228709295688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4606453 + ... + 4606480.

It is an arithmetic number, because the mean of its divisors is an integer number (27638802).

Almost surely, 2^128981062 is an apocalyptic number.

128981062 is a deficient number, since it is larger than the sum of its proper divisors (92129354).

128981062 is an equidigital number, since it uses as much as digits as its factorization.

128981062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9212942.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 128981062 is about 11356.9829620371. The cubic root of 128981062 is about 505.2527075571.

The spelling of 128981062 in words is "one hundred twenty-eight million, nine hundred eighty-one thousand, sixty-two".