142660499 has 2 divisors, whose sum is σ = 142660500. Its totient is φ = 142660498.

The previous prime is 142660489. The next prime is 142660523. The reversal of 142660499 is 994066241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142660499 - 2¹² = 142656403 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142660439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71330249 + 71330250.

It is an arithmetic number, because the mean of its divisors is an integer number (71330250).

Almost surely, 2^142660499 is an apocalyptic number.

142660499 is a deficient number, since it is larger than the sum of its proper divisors (1).

142660499 is an equidigital number, since it uses as much as digits as its factorization.

142660499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 142660499 is about 11944.0570578008. The cubic root of 142660499 is about 522.5179884377.

The spelling of 142660499 in words is "one hundred forty-two million, six hundred sixty thousand, four hundred ninety-nine".