12091463 has 4 divisors (see below), whose sum is σ = 12508440. Its totient is φ = 11674488.

The previous prime is 12091447. The next prime is 12091477. The reversal of 12091463 is 36419021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36419021 = 293 ⋅124297.

It is a cyclic number.

It is not a de Polignac number, because 12091463 - 2⁴ = 12091447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12091363) 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, 208445 + ... + 208502.

It is an arithmetic number, because the mean of its divisors is an integer number (3127110).

Almost surely, 2^12091463 is an apocalyptic number.

12091463 is a deficient number, since it is larger than the sum of its proper divisors (416977).

12091463 is an equidigital number, since it uses as much as digits as its factorization.

12091463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416976.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 12091463 is about 3477.2781021943. The cubic root of 12091463 is about 229.5230380500.

The spelling of 12091463 in words is "twelve million, ninety-one thousand, four hundred sixty-three".