12091355 has 16 divisors (see below), whose sum is σ = 14872224. Its totient is φ = 9434880.

The previous prime is 12091337. The next prime is 12091363. The reversal of 12091355 is 55319021.

It is not a de Polignac number, because 12091355 - 2⁶ = 12091291 is a prime.

It is a Duffinian 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 in 15 ways as a sum of consecutive naturals, for example, 57200 + ... + 57410.

It is an arithmetic number, because the mean of its divisors is an integer number (929514).

Almost surely, 2^12091355 is an apocalyptic number.

12091355 is a deficient number, since it is larger than the sum of its proper divisors (2780869).

12091355 is a wasteful number, since it uses less digits than its factorization.

12091355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 12091355 is about 3477.2625727719. The cubic root of 12091355 is about 229.5223546874.

The spelling of 12091355 in words is "twelve million, ninety-one thousand, three hundred fifty-five".