142861642 has 64 divisors (see below), whose sum is σ = 285348096. Its totient is φ = 51932160.

The previous prime is 142861639. The next prime is 142861661. The reversal of 142861642 is 246168241.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 142861598 and 142861607.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 515608 + ... + 515884.

It is an arithmetic number, because the mean of its divisors is an integer number (4458564).

Almost surely, 2^142861642 is an apocalyptic number.

142861642 is a deficient number, since it is larger than the sum of its proper divisors (142486454).

142861642 is a wasteful number, since it uses less digits than its factorization.

142861642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511.

The product of its digits is 18432, while the sum is 34.

The square root of 142861642 is about 11952.4743045112. The cubic root of 142861642 is about 522.7634464301.

The spelling of 142861642 in words is "one hundred forty-two million, eight hundred sixty-one thousand, six hundred forty-two".