86123156 has 72 divisors (see below), whose sum is σ = 189799680. Its totient is φ = 33449472.

The previous prime is 86123153. The next prime is 86123159. The reversal of 86123156 is 65132168.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (86123153) and next prime (86123159).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86123153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234485 + ... + 234851.

Almost surely, 2^86123156 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 86123156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94899840).

86123156 is an abundant number, since it is smaller than the sum of its proper divisors (103676524).

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

86123156 is a wasteful number, since it uses less digits than its factorization.

86123156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441 (or 422 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 86123156 is about 9280.2562464622. The cubic root of 86123156 is about 441.6110977594.

The spelling of 86123156 in words is "eighty-six million, one hundred twenty-three thousand, one hundred fifty-six".