12161582 has 8 divisors (see below), whose sum is σ = 18257400. Its totient is φ = 6075784.

The previous prime is 12161573. The next prime is 12161587. The reversal of 12161582 is 28516121.

12161582 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12161587) 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, 2669 + ... + 5607.

It is an arithmetic number, because the mean of its divisors is an integer number (2282175).

Almost surely, 2^12161582 is an apocalyptic number.

12161582 is a deficient number, since it is larger than the sum of its proper divisors (6095818).

12161582 is a wasteful number, since it uses less digits than its factorization.

12161582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5010.

The product of its digits is 960, while the sum is 26.

The square root of 12161582 is about 3487.3459822622. The cubic root of 12161582 is about 229.9658550446.

The spelling of 12161582 in words is "twelve million, one hundred sixty-one thousand, five hundred eighty-two".