142115427 has 12 divisors (see below), whose sum is σ = 217353240. Its totient is φ = 89170368.

The previous prime is 142115417. The next prime is 142115429. The reversal of 142115427 is 724511241.

It is not a de Polignac number, because 142115427 - 2⁴ = 142115411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142115427.

It is not an unprimeable number, because it can be changed into a prime (142115429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 464277 + ... + 464582.

It is an arithmetic number, because the mean of its divisors is an integer number (18112770).

Almost surely, 2^142115427 is an apocalyptic number.

142115427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

142115427 is a deficient number, since it is larger than the sum of its proper divisors (75237813).

142115427 is a wasteful number, since it uses less digits than its factorization.

142115427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928882 (or 928879 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 142115427 is about 11921.2175133247. The cubic root of 142115427 is about 521.8516665772.

Adding to 142115427 its reverse (724511241), we get a palindrome (866626668).

The spelling of 142115427 in words is "one hundred forty-two million, one hundred fifteen thousand, four hundred twenty-seven".