142049783 has 2 divisors, whose sum is σ = 142049784. Its totient is φ = 142049782.

The previous prime is 142049779. The next prime is 142049819. The reversal of 142049783 is 387940241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142049783 - 2² = 142049779 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142049723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71024891 + 71024892.

It is an arithmetic number, because the mean of its divisors is an integer number (71024892).

Almost surely, 2^142049783 is an apocalyptic number.

142049783 is a deficient number, since it is larger than the sum of its proper divisors (1).

142049783 is an equidigital number, since it uses as much as digits as its factorization.

142049783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 142049783 is about 11918.4639530436. The cubic root of 142049783 is about 521.7713053589.

The spelling of 142049783 in words is "one hundred forty-two million, forty-nine thousand, seven hundred eighty-three".