123086236 has 96 divisors (see below), whose sum is σ = 277222400. Its totient is φ = 47500992.

The previous prime is 123086233. The next prime is 123086287. The reversal of 123086236 is 632680321.

It is a junction number, because it is equal to n+sod(n) for n = 123086198 and 123086207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123086231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1194961 + ... + 1195063.

Almost surely, 2^123086236 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 123086236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138611200).

123086236 is an abundant number, since it is smaller than the sum of its proper divisors (154136164).

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

123086236 is a wasteful number, since it uses less digits than its factorization.

123086236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 123086236 is about 11094.4236443359. The cubic root of 123086236 is about 497.4351805654.

The spelling of 123086236 in words is "one hundred twenty-three million, eighty-six thousand, two hundred thirty-six".