142078193 has 2 divisors, whose sum is σ = 142078194. Its totient is φ = 142078192.

The previous prime is 142078159. The next prime is 142078201. The reversal of 142078193 is 391870241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141800464 + 277729 = 11908^2 + 527^2 .

It is a cyclic number.

It is not a de Polignac number, because 142078193 - 2¹⁸ = 141816049 is a prime.

It is a super-2 number, since 2×142078193² = 40372425852290498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (142068193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71039096 + 71039097.

It is an arithmetic number, because the mean of its divisors is an integer number (71039097).

Almost surely, 2^142078193 is an apocalyptic number.

It is an amenable number.

142078193 is a deficient number, since it is larger than the sum of its proper divisors (1).

142078193 is an equidigital number, since it uses as much as digits as its factorization.

142078193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 142078193 is about 11919.6557416731. The cubic root of 142078193 is about 521.8060878470.

The spelling of 142078193 in words is "one hundred forty-two million, seventy-eight thousand, one hundred ninety-three".