142516243 has 2 divisors, whose sum is σ = 142516244. Its totient is φ = 142516242.

The previous prime is 142516163. The next prime is 142516247. The reversal of 142516243 is 342615241.

It is a strong prime.

It is an emirp because it is prime and its reverse (342615241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142516243 - 2²¹ = 140419091 is a prime.

It is not a weakly prime, because it can be changed into another prime (142516247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71258121 + 71258122.

It is an arithmetic number, because the mean of its divisors is an integer number (71258122).

Almost surely, 2^142516243 is an apocalyptic number.

142516243 is a deficient number, since it is larger than the sum of its proper divisors (1).

142516243 is an equidigital number, since it uses as much as digits as its factorization.

142516243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 28.

The square root of 142516243 is about 11938.0167113302. The cubic root of 142516243 is about 522.3418084482.

The spelling of 142516243 in words is "one hundred forty-two million, five hundred sixteen thousand, two hundred forty-three".