142187323 has 2 divisors, whose sum is σ = 142187324. Its totient is φ = 142187322.

The previous prime is 142187321. The next prime is 142187329. The reversal of 142187323 is 323781241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142187323 - 2¹ = 142187321 is a prime.

Together with 142187321, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (142187321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71093661 + 71093662.

It is an arithmetic number, because the mean of its divisors is an integer number (71093662).

Almost surely, 2^142187323 is an apocalyptic number.

142187323 is a deficient number, since it is larger than the sum of its proper divisors (1).

142187323 is an equidigital number, since it uses as much as digits as its factorization.

142187323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

The square root of 142187323 is about 11924.2325958529. The cubic root of 142187323 is about 521.9396530894.

The spelling of 142187323 in words is "one hundred forty-two million, one hundred eighty-seven thousand, three hundred twenty-three".