142521043145640 has 128 divisors (see below), whose sum is σ = 451717466688000. Its totient is φ = 35914326898688.

The previous prime is 142521043145627. The next prime is 142521043145683. The reversal of 142521043145640 is 46541340125241.

It is a junction number, because it is equal to n+sod(n) for n = 142521043145592 and 142521043145601.

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, 435520725 + ... + 435847844.

It is an arithmetic number, because the mean of its divisors is an integer number (3529042708500).

Almost surely, 2^{142521043145640} is an apocalyptic number.

142521043145640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142521043145640 is an abundant number, since it is smaller than the sum of its proper divisors (309196423542360).

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

142521043145640 is a wasteful number, since it uses less digits than its factorization.

142521043145640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871368659 (or 871368655 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 142521043145640 in words is "one hundred forty-two trillion, five hundred twenty-one billion, forty-three million, one hundred forty-five thousand, six hundred forty".