2122451 has 2 divisors, whose sum is σ = 2122452. Its totient is φ = 2122450.

The previous prime is 2122441. The next prime is 2122459. The reversal of 2122451 is 1542212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122451 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2122459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061225 + 1061226.

It is an arithmetic number, because the mean of its divisors is an integer number (1061226).

2^2122451 is an apocalyptic number.

2122451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122451 is an equidigital number, since it uses as much as digits as its factorization.

2122451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 160, while the sum is 17.

The square root of 2122451 is about 1456.8634115798. The cubic root of 2122451 is about 128.5126535002.

Adding to 2122451 its reverse (1542212), we get a palindrome (3664663).

The spelling of 2122451 in words is "two million, one hundred twenty-two thousand, four hundred fifty-one".