735128 has 16 divisors (see below), whose sum is σ = 1411080. Its totient is φ = 358848.

The previous prime is 735113. The next prime is 735139. The reversal of 735128 is 821537.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 735097 and 735106.

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, 725 + ... + 1412.

2⁷³⁵¹²⁸ is an apocalyptic number.

It is an amenable number.

735128 is a deficient number, since it is larger than the sum of its proper divisors (675952).

735128 is a wasteful number, since it uses less digits than its factorization.

735128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186 (or 2182 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 735128 is about 857.3960578402. The cubic root of 735128 is about 90.2514777371.

The spelling of 735128 in words is "seven hundred thirty-five thousand, one hundred twenty-eight".