142373393 has 2 divisors, whose sum is σ = 142373394. Its totient is φ = 142373392.

The previous prime is 142373369. The next prime is 142373411. The reversal of 142373393 is 393373241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95491984 + 46881409 = 9772^2 + 6847^2 .

It is an emirp because it is prime and its reverse (393373241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142373393 - 2²² = 138179089 is a prime.

It is not a weakly prime, because it can be changed into another prime (142373993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71186696 + 71186697.

It is an arithmetic number, because the mean of its divisors is an integer number (71186697).

Almost surely, 2^142373393 is an apocalyptic number.

It is an amenable number.

142373393 is a deficient number, since it is larger than the sum of its proper divisors (1).

142373393 is an equidigital number, since it uses as much as digits as its factorization.

142373393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 35.

The square root of 142373393 is about 11932.0322242274. The cubic root of 142373393 is about 522.1672284141.

The spelling of 142373393 in words is "one hundred forty-two million, three hundred seventy-three thousand, three hundred ninety-three".