142142742 has 32 divisors (see below), whose sum is σ = 360998400. Its totient is φ = 40612104.

The previous prime is 142142731. The next prime is 142142747. The reversal of 142142742 is 247241241.

142142742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142142747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187642 + ... + 188397.

It is an arithmetic number, because the mean of its divisors is an integer number (11281200).

Almost surely, 2^142142742 is an apocalyptic number.

142142742 is an abundant number, since it is smaller than the sum of its proper divisors (218855658).

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

142142742 is a wasteful number, since it uses less digits than its factorization.

142142742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376057 (or 376051 counting only the distinct ones).

The product of its digits is 3584, while the sum is 27.

The square root of 142142742 is about 11922.3631046869. The cubic root of 142142742 is about 521.8850982401.

Adding to 142142742 its reverse (247241241), we get a palindrome (389383983).

It can be divided in two parts, 142142 and 742, that added together give a square (142884 = 378²).

The spelling of 142142742 in words is "one hundred forty-two million, one hundred forty-two thousand, seven hundred forty-two".