12091358 has 4 divisors (see below), whose sum is σ = 18137040. Its totient is φ = 6045678.

The previous prime is 12091337. The next prime is 12091363. The reversal of 12091358 is 85319021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85319021 = 653 ⋅130657.

It is a self number, because there is not a number n which added to its sum of digits gives 12091358.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3022838 + ... + 3022841.

It is an arithmetic number, because the mean of its divisors is an integer number (4534260).

Almost surely, 2^12091358 is an apocalyptic number.

12091358 is a deficient number, since it is larger than the sum of its proper divisors (6045682).

12091358 is an equidigital number, since it uses as much as digits as its factorization.

12091358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6045681.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 12091358 is about 3477.2630041456. The cubic root of 12091358 is about 229.5223736698.

The spelling of 12091358 in words is "twelve million, ninety-one thousand, three hundred fifty-eight".