142477213 has 2 divisors, whose sum is σ = 142477214. Its totient is φ = 142477212.

The previous prime is 142477201. The next prime is 142477243. The reversal of 142477213 is 312774241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115820644 + 26656569 = 10762^2 + 5163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142477213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142477243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71238606 + 71238607.

It is an arithmetic number, because the mean of its divisors is an integer number (71238607).

Almost surely, 2^142477213 is an apocalyptic number.

It is an amenable number.

142477213 is a deficient number, since it is larger than the sum of its proper divisors (1).

142477213 is an equidigital number, since it uses as much as digits as its factorization.

142477213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9408, while the sum is 31.

The square root of 142477213 is about 11936.3819057535. The cubic root of 142477213 is about 522.2941206391.

The spelling of 142477213 in words is "one hundred forty-two million, four hundred seventy-seven thousand, two hundred thirteen".