2131193 has 2 divisors, whose sum is σ = 2131194. Its totient is φ = 2131192.

The previous prime is 2131141. The next prime is 2131223. The reversal of 2131193 is 3911312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2036329 + 94864 = 1427^2 + 308^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131193 - 2⁸ = 2130937 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2131133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065596 + 1065597.

It is an arithmetic number, because the mean of its divisors is an integer number (1065597).

2^2131193 is an apocalyptic number.

It is an amenable number.

2131193 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131193 is an equidigital number, since it uses as much as digits as its factorization.

2131193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162, while the sum is 20.

The square root of 2131193 is about 1459.8606097844. The cubic root of 2131193 is about 128.6888521020.

The spelling of 2131193 in words is "two million, one hundred thirty-one thousand, one hundred ninety-three".