142820179900 has 36 divisors (see below), whose sum is σ = 311651224920. Its totient is φ = 56808913600.

The previous prime is 142820179889. The next prime is 142820179973. The reversal of 142820179900 is 9971028241.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3971491 + ... + 4007290.

It is an arithmetic number, because the mean of its divisors is an integer number (8656978470).

Almost surely, 2^142820179900 is an apocalyptic number.

142820179900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142820179900 is an abundant number, since it is smaller than the sum of its proper divisors (168831045020).

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

142820179900 is a wasteful number, since it uses less digits than its factorization.

142820179900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7978974 (or 7978967 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 142820179900 in words is "one hundred forty-two billion, eight hundred twenty million, one hundred seventy-nine thousand, nine hundred".