19142377 has 2 divisors, whose sum is σ = 19142378. Its totient is φ = 19142376.

The previous prime is 19142341. The next prime is 19142393. The reversal of 19142377 is 77324191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12257001 + 6885376 = 3501^2 + 2624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19142377 is a prime.

It is not a weakly prime, because it can be changed into another prime (19142327) 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, 9571188 + 9571189.

It is an arithmetic number, because the mean of its divisors is an integer number (9571189).

Almost surely, 2^19142377 is an apocalyptic number.

It is an amenable number.

19142377 is a deficient number, since it is larger than the sum of its proper divisors (1).

19142377 is an equidigital number, since it uses as much as digits as its factorization.

19142377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 34.

The square root of 19142377 is about 4375.2002239898. The cubic root of 19142377 is about 267.5050314947.

The spelling of 19142377 in words is "nineteen million, one hundred forty-two thousand, three hundred seventy-seven".