123489535 has 16 divisors (see below), whose sum is σ = 163902816. Its totient is φ = 88725888.

The previous prime is 123489533. The next prime is 123489557. The reversal of 123489535 is 535984321.

It is a cyclic number.

It is not a de Polignac number, because 123489535 - 2¹ = 123489533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123489533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23269 + ... + 28078.

It is an arithmetic number, because the mean of its divisors is an integer number (10243926).

Almost surely, 2^123489535 is an apocalyptic number.

123489535 is a deficient number, since it is larger than the sum of its proper divisors (40413281).

123489535 is a wasteful number, since it uses less digits than its factorization.

123489535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51402.

The product of its digits is 129600, while the sum is 40.

The square root of 123489535 is about 11112.5845328618. The cubic root of 123489535 is about 497.9778797506.

The spelling of 123489535 in words is "one hundred twenty-three million, four hundred eighty-nine thousand, five hundred thirty-five".