142317743 has 2 divisors, whose sum is σ = 142317744. Its totient is φ = 142317742.

The previous prime is 142317719. The next prime is 142317793. The reversal of 142317743 is 347713241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142317743 - 2²⁶ = 75208879 is a prime.

It is a super-2 number, since 2×142317743² = 40508679945228098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142317713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71158871 + 71158872.

It is an arithmetic number, because the mean of its divisors is an integer number (71158872).

Almost surely, 2^142317743 is an apocalyptic number.

142317743 is a deficient number, since it is larger than the sum of its proper divisors (1).

142317743 is an equidigital number, since it uses as much as digits as its factorization.

142317743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 32.

The square root of 142317743 is about 11929.7000381401. The cubic root of 142317743 is about 522.0991857540.

The spelling of 142317743 in words is "one hundred forty-two million, three hundred seventeen thousand, seven hundred forty-three".