19424051 has 2 divisors, whose sum is σ = 19424052. Its totient is φ = 19424050.

The previous prime is 19424021. The next prime is 19424057. The reversal of 19424051 is 15042491.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19424051 is a prime.

It is a Chen prime.

It is equal to p_1236338 and since 19424051 and 1236338 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19424051.

It is not a weakly prime, because it can be changed into another prime (19424057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9712025 + 9712026.

It is an arithmetic number, because the mean of its divisors is an integer number (9712026).

Almost surely, 2^19424051 is an apocalyptic number.

19424051 is a deficient number, since it is larger than the sum of its proper divisors (1).

19424051 is an equidigital number, since it uses as much as digits as its factorization.

19424051 is an odious number, because the sum of its binary digits is odd.

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

The square root of 19424051 is about 4407.2725125638. The cubic root of 19424051 is about 268.8107318310.

The spelling of 19424051 in words is "nineteen million, four hundred twenty-four thousand, fifty-one".