142047277 has 2 divisors, whose sum is σ = 142047278. Its totient is φ = 142047276.

The previous prime is 142047271. The next prime is 142047281. The reversal of 142047277 is 772740241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77951241 + 64096036 = 8829^2 + 8006^2 .

It is a cyclic number.

It is not a de Polignac number, because 142047277 - 2¹¹ = 142045229 is a prime.

It is a super-2 number, since 2×142047277² = 40354857806229458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142047271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71023638 + 71023639.

It is an arithmetic number, because the mean of its divisors is an integer number (71023639).

Almost surely, 2^142047277 is an apocalyptic number.

It is an amenable number.

142047277 is a deficient number, since it is larger than the sum of its proper divisors (1).

142047277 is an equidigital number, since it uses as much as digits as its factorization.

142047277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21952, while the sum is 34.

The square root of 142047277 is about 11918.3588215828. The cubic root of 142047277 is about 521.7682370295.

The spelling of 142047277 in words is "one hundred forty-two million, forty-seven thousand, two hundred seventy-seven".