2051923 has 2 divisors, whose sum is σ = 2051924. Its totient is φ = 2051922.

The previous prime is 2051893. The next prime is 2051947. The reversal of 2051923 is 3291502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2051923 - 2⁵ = 2051891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2051894 and 2051903.

It is not a weakly prime, because it can be changed into another prime (2051963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025961 + 1025962.

It is an arithmetic number, because the mean of its divisors is an integer number (1025962).

2^2051923 is an apocalyptic number.

2051923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051923 is an equidigital number, since it uses as much as digits as its factorization.

2051923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 2051923 is about 1432.4534896463. The cubic root of 2051923 is about 127.0731180418.

The spelling of 2051923 in words is "two million, fifty-one thousand, nine hundred twenty-three".