142787242 has 32 divisors (see below), whose sum is σ = 251193600. Its totient is φ = 60274368.

The previous prime is 142787231. The next prime is 142787263. The reversal of 142787242 is 242787241.

It is a super-3 number, since 3×142787242³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9343 + ... + 19309.

It is an arithmetic number, because the mean of its divisors is an integer number (7849800).

Almost surely, 2^142787242 is an apocalyptic number.

142787242 is a deficient number, since it is larger than the sum of its proper divisors (108406358).

142787242 is a wasteful number, since it uses less digits than its factorization.

142787242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10030.

The product of its digits is 50176, while the sum is 37.

The square root of 142787242 is about 11949.3615729042. The cubic root of 142787242 is about 522.6726817958.

Subtracting 142787242 from its reverse (242787241), we obtain a palindrome (99999999).

The spelling of 142787242 in words is "one hundred forty-two million, seven hundred eighty-seven thousand, two hundred forty-two".