142205377 has 2 divisors, whose sum is σ = 142205378. Its totient is φ = 142205376.

The previous prime is 142205363. The next prime is 142205383. The reversal of 142205377 is 773502241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141514816 + 690561 = 11896^2 + 831^2 .

It is a cyclic number.

It is not a de Polignac number, because 142205377 - 2¹¹ = 142203329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142209377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71102688 + 71102689.

It is an arithmetic number, because the mean of its divisors is an integer number (71102689).

Almost surely, 2^142205377 is an apocalyptic number.

It is an amenable number.

142205377 is a deficient number, since it is larger than the sum of its proper divisors (1).

142205377 is an equidigital number, since it uses as much as digits as its factorization.

142205377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 142205377 is about 11924.9896016726. The cubic root of 142205377 is about 521.9617429623.

The spelling of 142205377 in words is "one hundred forty-two million, two hundred five thousand, three hundred seventy-seven".