142498387 has 2 divisors, whose sum is σ = 142498388. Its totient is φ = 142498386.

The previous prime is 142498361. The next prime is 142498399. The reversal of 142498387 is 783894241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142498387 is a prime.

It is not a weakly prime, because it can be changed into another prime (142498487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71249193 + 71249194.

It is an arithmetic number, because the mean of its divisors is an integer number (71249194).

Almost surely, 2^142498387 is an apocalyptic number.

142498387 is a deficient number, since it is larger than the sum of its proper divisors (1).

142498387 is an equidigital number, since it uses as much as digits as its factorization.

142498387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 46.

The square root of 142498387 is about 11937.2688249867. The cubic root of 142498387 is about 522.3199926310.

The spelling of 142498387 in words is "one hundred forty-two million, four hundred ninety-eight thousand, three hundred eighty-seven".