142616477 has 2 divisors, whose sum is σ = 142616478. Its totient is φ = 142616476.

The previous prime is 142616431. The next prime is 142616483. The reversal of 142616477 is 774616241.

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., 109599961 + 33016516 = 10469^2 + 5746^2 .

It is a cyclic number.

It is not a de Polignac number, because 142616477 - 2¹⁰ = 142615453 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142616477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142613477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71308238 + 71308239.

It is an arithmetic number, because the mean of its divisors is an integer number (71308239).

Almost surely, 2^142616477 is an apocalyptic number.

It is an amenable number.

142616477 is a deficient number, since it is larger than the sum of its proper divisors (1).

142616477 is an equidigital number, since it uses as much as digits as its factorization.

142616477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 38.

The square root of 142616477 is about 11942.2140744503. The cubic root of 142616477 is about 522.4642369240.

It can be divided in two parts, 1426164 and 77, that added together give a palindrome (1426241).

The spelling of 142616477 in words is "one hundred forty-two million, six hundred sixteen thousand, four hundred seventy-seven".