142769299 has 2 divisors, whose sum is σ = 142769300. Its totient is φ = 142769298.

The previous prime is 142769293. The next prime is 142769309. The reversal of 142769299 is 992967241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142769299 - 2¹⁹ = 142245011 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142769293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71384649 + 71384650.

It is an arithmetic number, because the mean of its divisors is an integer number (71384650).

Almost surely, 2^142769299 is an apocalyptic number.

142769299 is a deficient number, since it is larger than the sum of its proper divisors (1).

142769299 is an equidigital number, since it uses as much as digits as its factorization.

142769299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 49.

The square root of 142769299 is about 11948.6107560670. The cubic root of 142769299 is about 522.6507874289.

The spelling of 142769299 in words is "one hundred forty-two million, seven hundred sixty-nine thousand, two hundred ninety-nine".