735138 has 12 divisors (see below), whose sum is σ = 1592838. Its totient is φ = 245040.

The previous prime is 735113. The next prime is 735139. The reversal of 735138 is 831537.

It can be written as a sum of positive squares in only one way, i.e., 471969 + 263169 = 687^2 + 513^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 735138.

It is not an unprimeable number, because it can be changed into a prime (735139) by changing a digit.

735138 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 5 ways as a sum of consecutive naturals, for example, 20403 + ... + 20438.

2⁷³⁵¹³⁸ is an apocalyptic number.

735138 is an abundant number, since it is smaller than the sum of its proper divisors (857700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

735138 is a wasteful number, since it uses less digits than its factorization.

735138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40849 (or 40846 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 735138 is about 857.4018894311. The cubic root of 735138 is about 90.2518869678.

The spelling of 735138 in words is "seven hundred thirty-five thousand, one hundred thirty-eight".