12091061 has 2 divisors, whose sum is σ = 12091062. Its totient is φ = 12091060.

The previous prime is 12091033. The next prime is 12091073. The reversal of 12091061 is 16019021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8814961 + 3276100 = 2969^2 + 1810^2 .

It is a cyclic number.

It is not a de Polignac number, because 12091061 - 2⁶ = 12090997 is a prime.

It is a super-2 number, since 2×12091061² = 292387512211442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12091081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6045530 + 6045531.

It is an arithmetic number, because the mean of its divisors is an integer number (6045531).

Almost surely, 2^12091061 is an apocalyptic number.

It is an amenable number.

12091061 is a deficient number, since it is larger than the sum of its proper divisors (1).

12091061 is an equidigital number, since it uses as much as digits as its factorization.

12091061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 12091061 is about 3477.2202978816. The cubic root of 12091061 is about 229.5204944019.

The spelling of 12091061 in words is "twelve million, ninety-one thousand, sixty-one".