142353391 has 2 divisors, whose sum is σ = 142353392. Its totient is φ = 142353390.

The previous prime is 142353331. The next prime is 142353397. The reversal of 142353391 is 193353241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142353391 - 2⁹ = 142352879 is a prime.

It is equal to p_8037553 and since 142353391 and 8037553 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142353397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71176695 + 71176696.

It is an arithmetic number, because the mean of its divisors is an integer number (71176696).

Almost surely, 2^142353391 is an apocalyptic number.

142353391 is a deficient number, since it is larger than the sum of its proper divisors (1).

142353391 is an equidigital number, since it uses as much as digits as its factorization.

142353391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 31.

The square root of 142353391 is about 11931.1940307750. The cubic root of 142353391 is about 522.1427742240.

The spelling of 142353391 in words is "one hundred forty-two million, three hundred fifty-three thousand, three hundred ninety-one".