142727131 has 4 divisors (see below), whose sum is σ = 147331264. Its totient is φ = 138123000.

The previous prime is 142727099. The next prime is 142727141. The reversal of 142727131 is 131727241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131727241 = 593 ⋅222137.

It is a cyclic number.

It is not a de Polignac number, because 142727131 - 2⁵ = 142727099 is a prime.

It is a super-2 number, since 2×142727131² = 40742067846982322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142727131.

It is not an unprimeable number, because it can be changed into a prime (142727141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2302020 + ... + 2302081.

It is an arithmetic number, because the mean of its divisors is an integer number (36832816).

Almost surely, 2^142727131 is an apocalyptic number.

142727131 is a deficient number, since it is larger than the sum of its proper divisors (4604133).

142727131 is an equidigital number, since it uses as much as digits as its factorization.

142727131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4604132.

The product of its digits is 2352, while the sum is 28.

The square root of 142727131 is about 11946.8460691515. The cubic root of 142727131 is about 522.5993260650.

The spelling of 142727131 in words is "one hundred forty-two million, seven hundred twenty-seven thousand, one hundred thirty-one".