142421135884 has 12 divisors (see below), whose sum is σ = 250229965608. Its totient is φ = 70926860000.

The previous prime is 142421135869. The next prime is 142421135887. The reversal of 142421135884 is 488531124241.

It is a super-2 number, since 2×142421135884² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142421135884.

It is not an unprimeable number, because it can be changed into a prime (142421135887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70925857 + ... + 70927864.

It is an arithmetic number, because the mean of its divisors is an integer number (20852497134).

Almost surely, 2^142421135884 is an apocalyptic number.

It is an amenable number.

142421135884 is a deficient number, since it is larger than the sum of its proper divisors (107808829724).

142421135884 is a wasteful number, since it uses less digits than its factorization.

142421135884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141853976 (or 141853974 counting only the distinct ones).

The product of its digits is 245760, while the sum is 43.

The spelling of 142421135884 in words is "one hundred forty-two billion, four hundred twenty-one million, one hundred thirty-five thousand, eight hundred eighty-four".