142551664393 has 2 divisors, whose sum is σ = 142551664394. Its totient is φ = 142551664392.

The previous prime is 142551664361. The next prime is 142551664399. The reversal of 142551664393 is 393466155241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83652257529 + 58899406864 = 289227^2 + 242692^2 .

It is a cyclic number.

It is not a de Polignac number, because 142551664393 - 2⁵ = 142551664361 is a prime.

It is not a weakly prime, because it can be changed into another prime (142551664399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71275832196 + 71275832197.

It is an arithmetic number, because the mean of its divisors is an integer number (71275832197).

Almost surely, 2^142551664393 is an apocalyptic number.

It is an amenable number.

142551664393 is a deficient number, since it is larger than the sum of its proper divisors (1).

142551664393 is an equidigital number, since it uses as much as digits as its factorization.

142551664393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2332800, while the sum is 49.

The spelling of 142551664393 in words is "one hundred forty-two billion, five hundred fifty-one million, six hundred sixty-four thousand, three hundred ninety-three".