142127530 has 16 divisors (see below), whose sum is σ = 261273600. Its totient is φ = 55641232.

The previous prime is 142127527. The next prime is 142127539. The reversal of 142127530 is 35721241.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 142127495 and 142127504.

It is not an unprimeable number, because it can be changed into a prime (142127539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150730 + ... + 151669.

It is an arithmetic number, because the mean of its divisors is an integer number (16329600).

Almost surely, 2^142127530 is an apocalyptic number.

142127530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142127530 is a deficient number, since it is larger than the sum of its proper divisors (119146070).

142127530 is a wasteful number, since it uses less digits than its factorization.

142127530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302453.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 142127530 is about 11921.7251268430. The cubic root of 142127530 is about 521.8664803371.

Adding to 142127530 its reverse (35721241), we get a palindrome (177848771).

The spelling of 142127530 in words is "one hundred forty-two million, one hundred twenty-seven thousand, five hundred thirty".