142142046140 has 24 divisors (see below), whose sum is σ = 305440119600. Its totient is φ = 55534566528.

The previous prime is 142142046139. The next prime is 142142046209. The reversal of 142142046140 is 41640241241.

It is a super-2 number, since 2×142142046140² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82639865 + ... + 82641584.

It is an arithmetic number, because the mean of its divisors is an integer number (12726671650).

Almost surely, 2^142142046140 is an apocalyptic number.

142142046140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142142046140 is an abundant number, since it is smaller than the sum of its proper divisors (163298073460).

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

142142046140 is a wasteful number, since it uses less digits than its factorization.

142142046140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165281501 (or 165281499 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 142142046140 its reverse (41640241241), we get a palindrome (183782287381).

The spelling of 142142046140 in words is "one hundred forty-two billion, one hundred forty-two million, forty-six thousand, one hundred forty".