12146081 has 6 divisors (see below), whose sum is σ = 12437010. Its totient is φ = 11861808.

The previous prime is 12146059. The next prime is 12146087. The reversal of 12146081 is 18064121.

12146081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11833600 + 312481 = 3440^2 + 559^2 .

It is not a de Polignac number, because 12146081 - 2¹⁰ = 12145057 is a prime.

It is a super-2 number, since 2×12146081² = 295054567317122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12146087) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1436 + ... + 5133.

It is an arithmetic number, because the mean of its divisors is an integer number (2072835).

Almost surely, 2^12146081 is an apocalyptic number.

It is an amenable number.

12146081 is a deficient number, since it is larger than the sum of its proper divisors (290929).

12146081 is an frugal number, since it uses more digits than its factorization.

12146081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6655 (or 6612 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 12146081 is about 3485.1228098878. The cubic root of 12146081 is about 229.8681096389.

The spelling of 12146081 in words is "twelve million, one hundred forty-six thousand, eighty-one".