142617743 has 18 divisors (see below), whose sum is σ = 160010856. Its totient is φ = 127070784.

The previous prime is 142617731. The next prime is 142617751. The reversal of 142617743 is 347716241.

It is a de Polignac number, because none of the positive numbers 2^k-142617743 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142617703) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 103646 + ... + 105012.

It is an arithmetic number, because the mean of its divisors is an integer number (8889492).

Almost surely, 2^142617743 is an apocalyptic number.

142617743 is a deficient number, since it is larger than the sum of its proper divisors (17393113).

142617743 is a wasteful number, since it uses less digits than its factorization.

142617743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439 (or 1403 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 142617743 is about 11942.2670795792. The cubic root of 142617743 is about 522.4657828832.

The spelling of 142617743 in words is "one hundred forty-two million, six hundred seventeen thousand, seven hundred forty-three".