128425562 has 8 divisors (see below), whose sum is σ = 192823092. Its totient is φ = 64151200.

The previous prime is 128425559. The next prime is 128425597. The reversal of 128425562 is 265524821.

It can be written as a sum of positive squares in 2 ways, for example, as 126810121 + 1615441 = 11261^2 + 1271^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 28139 + ... + 32382.

Almost surely, 2^128425562 is an apocalyptic number.

128425562 is a deficient number, since it is larger than the sum of its proper divisors (64397530).

128425562 is a wasteful number, since it uses less digits than its factorization.

128425562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61584.

The product of its digits is 38400, while the sum is 35.

The square root of 128425562 is about 11332.5002536951. The cubic root of 128425562 is about 504.5263172599.

The spelling of 128425562 in words is "one hundred twenty-eight million, four hundred twenty-five thousand, five hundred sixty-two".