142131042 has 24 divisors (see below), whose sum is σ = 311414220. Its totient is φ = 46844160.

The previous prime is 142130993. The next prime is 142131047. The reversal of 142131042 is 240131241.

It can be written as a sum of positive squares in 2 ways, for example, as 133610481 + 8520561 = 11559^2 + 2919^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (142131047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42759 + ... + 45962.

Almost surely, 2^142131042 is an apocalyptic number.

142131042 is an abundant number, since it is smaller than the sum of its proper divisors (169283178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142131042 is a wasteful number, since it uses less digits than its factorization.

142131042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88818 (or 88815 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 142131042 is about 11921.8724200521. The cubic root of 142131042 is about 521.8707787771.

Adding to 142131042 its reverse (240131241), we get a palindrome (382262283).

The spelling of 142131042 in words is "one hundred forty-two million, one hundred thirty-one thousand, forty-two".