128452834 has 8 divisors (see below), whose sum is σ = 192770028. Its totient is φ = 64196160.

The previous prime is 128452829. The next prime is 128452837. The reversal of 128452834 is 438254821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 125372809 + 3080025 = 11197^2 + 1755^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 128452793 and 128452802.

It is not an unprimeable number, because it can be changed into a prime (128452837) by changing a digit.

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, 9387 + ... + 18574.

Almost surely, 2^128452834 is an apocalyptic number.

128452834 is a deficient number, since it is larger than the sum of its proper divisors (64317194).

128452834 is a wasteful number, since it uses less digits than its factorization.

128452834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30260.

The product of its digits is 61440, while the sum is 37.

The square root of 128452834 is about 11333.7034547406. The cubic root of 128452834 is about 504.5620278762.

It can be divided in two parts, 128452 and 834, that added together give a triangular number (129286 = T₅₀₈).

The spelling of 128452834 in words is "one hundred twenty-eight million, four hundred fifty-two thousand, eight hundred thirty-four".