2151683 has 2 divisors, whose sum is σ = 2151684. Its totient is φ = 2151682.

The previous prime is 2151659. The next prime is 2151701. The reversal of 2151683 is 3861512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2151683 - 2⁶ = 2151619 is a prime.

It is not a weakly prime, because it can be changed into another prime (2151623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075841 + 1075842.

It is an arithmetic number, because the mean of its divisors is an integer number (1075842).

2^2151683 is an apocalyptic number.

2151683 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151683 is an equidigital number, since it uses as much as digits as its factorization.

2151683 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 26.

The square root of 2151683 is about 1466.8616158316. The cubic root of 2151683 is about 129.0999565804.

The spelling of 2151683 in words is "two million, one hundred fifty-one thousand, six hundred eighty-three".