2125451 has 2 divisors, whose sum is σ = 2125452. Its totient is φ = 2125450.

The previous prime is 2125429. The next prime is 2125457. The reversal of 2125451 is 1545212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2125451 - 2¹⁴ = 2109067 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2125457) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062725 + 1062726.

It is an arithmetic number, because the mean of its divisors is an integer number (1062726).

2^2125451 is an apocalyptic number.

2125451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125451 is an equidigital number, since it uses as much as digits as its factorization.

2125451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 400, while the sum is 20.

The square root of 2125451 is about 1457.8926572282. The cubic root of 2125451 is about 128.5731741680.

The spelling of 2125451 in words is "two million, one hundred twenty-five thousand, four hundred fifty-one".