142772687 has 2 divisors, whose sum is σ = 142772688. Its totient is φ = 142772686.

The previous prime is 142772659. The next prime is 142772689. The reversal of 142772687 is 786277241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142772687 - 2¹⁰ = 142771663 is a prime.

Together with 142772689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142772689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71386343 + 71386344.

It is an arithmetic number, because the mean of its divisors is an integer number (71386344).

Almost surely, 2^142772687 is an apocalyptic number.

142772687 is a deficient number, since it is larger than the sum of its proper divisors (1).

142772687 is an equidigital number, since it uses as much as digits as its factorization.

142772687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 263424, while the sum is 44.

The square root of 142772687 is about 11948.7525290300. The cubic root of 142772687 is about 522.6549216671.

The spelling of 142772687 in words is "one hundred forty-two million, seven hundred seventy-two thousand, six hundred eighty-seven".