2131793 has 2 divisors, whose sum is σ = 2131794. Its totient is φ = 2131792.

The previous prime is 2131771. The next prime is 2131799. The reversal of 2131793 is 3971312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2007889 + 123904 = 1417^2 + 352^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131793 - 2⁸ = 2131537 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 (2131799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065896 + 1065897.

It is an arithmetic number, because the mean of its divisors is an integer number (1065897).

2^2131793 is an apocalyptic number.

It is an amenable number.

2131793 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131793 is an equidigital number, since it uses as much as digits as its factorization.

2131793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1134, while the sum is 26.

The square root of 2131793 is about 1460.0660943944. The cubic root of 2131793 is about 128.7009276650.

The spelling of 2131793 in words is "two million, one hundred thirty-one thousand, seven hundred ninety-three".