142883977 has 2 divisors, whose sum is σ = 142883978. Its totient is φ = 142883976.

The previous prime is 142883959. The next prime is 142884011. The reversal of 142883977 is 779388241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134652816 + 8231161 = 11604^2 + 2869^2 .

It is a cyclic number.

It is not a de Polignac number, because 142883977 - 2¹⁵ = 142851209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142883977.

It is not a weakly prime, because it can be changed into another prime (142883947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71441988 + 71441989.

It is an arithmetic number, because the mean of its divisors is an integer number (71441989).

Almost surely, 2^142883977 is an apocalyptic number.

It is an amenable number.

142883977 is a deficient number, since it is larger than the sum of its proper divisors (1).

142883977 is an equidigital number, since it uses as much as digits as its factorization.

142883977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 49.

The square root of 142883977 is about 11953.4085933678. The cubic root of 142883977 is about 522.7906879696.

The spelling of 142883977 in words is "one hundred forty-two million, eight hundred eighty-three thousand, nine hundred seventy-seven".