142477277 has 2 divisors, whose sum is σ = 142477278. Its totient is φ = 142477276.

The previous prime is 142477259. The next prime is 142477297. The reversal of 142477277 is 772774241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135815716 + 6661561 = 11654^2 + 2581^2 .

It is an emirp because it is prime and its reverse (772774241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142477277 - 2⁶ = 142477213 is a prime.

It is a super-2 number, since 2×142477277² = 40599548922669458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142477297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71238638 + 71238639.

It is an arithmetic number, because the mean of its divisors is an integer number (71238639).

Almost surely, 2^142477277 is an apocalyptic number.

It is an amenable number.

142477277 is a deficient number, since it is larger than the sum of its proper divisors (1).

142477277 is an equidigital number, since it uses as much as digits as its factorization.

142477277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 153664, while the sum is 41.

The square root of 142477277 is about 11936.3845866326. The cubic root of 142477277 is about 522.2941988430.

The spelling of 142477277 in words is "one hundred forty-two million, four hundred seventy-seven thousand, two hundred seventy-seven".