142404240193 has 2 divisors, whose sum is σ = 142404240194. Its totient is φ = 142404240192.

The previous prime is 142404240149. The next prime is 142404240257. The reversal of 142404240193 is 391042404241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93161079729 + 49243160464 = 305223^2 + 221908^2 .

It is a cyclic number.

It is not a de Polignac number, because 142404240193 - 2¹⁷ = 142404109121 is a prime.

It is not a weakly prime, because it can be changed into another prime (142404240593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71202120096 + 71202120097.

It is an arithmetic number, because the mean of its divisors is an integer number (71202120097).

Almost surely, 2^142404240193 is an apocalyptic number.

It is an amenable number.

142404240193 is a deficient number, since it is larger than the sum of its proper divisors (1).

142404240193 is an equidigital number, since it uses as much as digits as its factorization.

142404240193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 34.

The spelling of 142404240193 in words is "one hundred forty-two billion, four hundred four million, two hundred forty thousand, one hundred ninety-three".