2106424451 has 2 divisors, whose sum is σ = 2106424452. Its totient is φ = 2106424450.

The previous prime is 2106424403. The next prime is 2106424511. The reversal of 2106424451 is 1544246012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2106424451 is a prime.

It is not a weakly prime, because it can be changed into another prime (2106420451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053212225 + 1053212226.

It is an arithmetic number, because the mean of its divisors is an integer number (1053212226).

Almost surely, 2^2106424451 is an apocalyptic number.

2106424451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2106424451 is an equidigital number, since it uses as much as digits as its factorization.

2106424451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 2106424451 is about 45895.7999276622. The cubic root of 2106424451 is about 1281.8837114623.

The spelling of 2106424451 in words is "two billion, one hundred six million, four hundred twenty-four thousand, four hundred fifty-one".