142183919 has 2 divisors, whose sum is σ = 142183920. Its totient is φ = 142183918.

The previous prime is 142183901. The next prime is 142183939. The reversal of 142183919 is 919381241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142183919 - 2⁸ = 142183663 is a prime.

It is a super-2 number, since 2×142183919² = 40432533644397122, which contains 22 as substring.

It is a Chen prime.

It is equal to p_8028488 and since 142183919 and 8028488 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142183939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71091959 + 71091960.

It is an arithmetic number, because the mean of its divisors is an integer number (71091960).

Almost surely, 2^142183919 is an apocalyptic number.

142183919 is a deficient number, since it is larger than the sum of its proper divisors (1).

142183919 is an equidigital number, since it uses as much as digits as its factorization.

142183919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 38.

The square root of 142183919 is about 11924.0898604464. The cubic root of 142183919 is about 521.9354879343.

The spelling of 142183919 in words is "one hundred forty-two million, one hundred eighty-three thousand, nine hundred nineteen".