142142046138 has 96 divisors (see below), whose sum is σ = 318524244480. Its totient is φ = 45784823040.

The previous prime is 142142046089. The next prime is 142142046139. The reversal of 142142046138 is 831640241241.

142142046138 is a `hidden beast` number, since 1 + 4 + 2 + 14 + 20 + 4 + 613 + 8 = 666.

It is a super-2 number, since 2×142142046138² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142142046139) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102926208 + ... + 102927588.

It is an arithmetic number, because the mean of its divisors is an integer number (3317960880).

Almost surely, 2^142142046138 is an apocalyptic number.

142142046138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

142142046138 is an abundant number, since it is smaller than the sum of its proper divisors (176382198342).

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

142142046138 is a wasteful number, since it uses less digits than its factorization.

142142046138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2892 (or 2889 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

Adding to 142142046138 its reverse (831640241241), we get a palindrome (973782287379).

The spelling of 142142046138 in words is "one hundred forty-two billion, one hundred forty-two million, forty-six thousand, one hundred thirty-eight".