142205601397 has 2 divisors, whose sum is σ = 142205601398. Its totient is φ = 142205601396.

The previous prime is 142205601331. The next prime is 142205601427. The reversal of 142205601397 is 793106502241.

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., 140230776676 + 1974824721 = 374474^2 + 44439^2 .

It is a cyclic number.

It is not a de Polignac number, because 142205601397 - 2²⁷ = 142071383669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142205641397) 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, 71102800698 + 71102800699.

It is an arithmetic number, because the mean of its divisors is an integer number (71102800699).

Almost surely, 2^142205601397 is an apocalyptic number.

It is an amenable number.

142205601397 is a deficient number, since it is larger than the sum of its proper divisors (1).

142205601397 is an equidigital number, since it uses as much as digits as its factorization.

142205601397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 142205601397 in words is "one hundred forty-two billion, two hundred five million, six hundred one thousand, three hundred ninety-seven".