142719317 has 20 divisors (see below), whose sum is σ = 163368480. Its totient is φ = 124332624.

The previous prime is 142719299. The next prime is 142719337. The reversal of 142719317 is 713917241.

It is not a de Polignac number, because 142719317 - 2⁶ = 142719253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142719337) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 542528 + ... + 542790.

It is an arithmetic number, because the mean of its divisors is an integer number (8168424).

Almost surely, 2^142719317 is an apocalyptic number.

It is an amenable number.

142719317 is a deficient number, since it is larger than the sum of its proper divisors (20649163).

142719317 is an frugal number, since it uses more digits than its factorization.

142719317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 295 counting only the distinct ones).

The product of its digits is 10584, while the sum is 35.

The square root of 142719317 is about 11946.5190327559. The cubic root of 142719317 is about 522.5897888321.

The spelling of 142719317 in words is "one hundred forty-two million, seven hundred nineteen thousand, three hundred seventeen".