12158032 has 20 divisors (see below), whose sum is σ = 23944276. Its totient is φ = 5978880.

The previous prime is 12158011. The next prime is 12158033. The reversal of 12158032 is 23085121.

It can be written as a sum of positive squares in 2 ways, for example, as 4562496 + 7595536 = 2136^2 + 2756^2 .

It is a super-3 number, since 3×12158032³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 12157994 and 12158012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12158033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5253 + ... + 7204.

Almost surely, 2^12158032 is an apocalyptic number.

It is an amenable number.

12158032 is a deficient number, since it is larger than the sum of its proper divisors (11786244).

12158032 is a wasteful number, since it uses less digits than its factorization.

12158032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12526 (or 12520 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 12158032 is about 3486.8369620617. The cubic root of 12158032 is about 229.9434769737.

The spelling of 12158032 in words is "twelve million, one hundred fifty-eight thousand, thirty-two".