123854536 has 32 divisors (see below), whose sum is σ = 252919800. Its totient is φ = 56517120.

The previous prime is 123854531. The next prime is 123854539. The reversal of 123854536 is 635458321.

It can be written as a sum of positive squares in 4 ways, for example, as 39765636 + 84088900 = 6306^2 + 9170^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123854495 and 123854504.

It is not an unprimeable number, because it can be changed into a prime (123854531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2566 + ... + 15946.

Almost surely, 2^123854536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123854536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126459900).

123854536 is an abundant number, since it is smaller than the sum of its proper divisors (129065264).

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

123854536 is a wasteful number, since it uses less digits than its factorization.

123854536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13489 (or 13485 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 123854536 is about 11128.9952825940. The cubic root of 123854536 is about 498.4680255693.

The spelling of 123854536 in words is "one hundred twenty-three million, eight hundred fifty-four thousand, five hundred thirty-six".