142516019 has 2 divisors, whose sum is σ = 142516020. Its totient is φ = 142516018.

The previous prime is 142516001. The next prime is 142516057. The reversal of 142516019 is 910615241.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142516019 is a prime.

It is a super-2 number, since 2×142516019² = 40621631343216722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 142515982 and 142516000.

It is not a weakly prime, because it can be changed into another prime (142536019) 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, 71258009 + 71258010.

It is an arithmetic number, because the mean of its divisors is an integer number (71258010).

Almost surely, 2^142516019 is an apocalyptic number.

142516019 is a deficient number, since it is larger than the sum of its proper divisors (1).

142516019 is an equidigital number, since it uses as much as digits as its factorization.

142516019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 142516019 is about 11938.0073295337. The cubic root of 142516019 is about 522.3415347843.

The spelling of 142516019 in words is "one hundred forty-two million, five hundred sixteen thousand, nineteen".