142521043145644 has 24 divisors (see below), whose sum is σ = 250057483275600. Its totient is φ = 71076177343680.

The previous prime is 142521043145627. The next prime is 142521043145683. The reversal of 142521043145644 is 446541340125241.

It is a junction number, because it is equal to n+sod(n) for n = 142521043145594 and 142521043145603.

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, 11770714 + ... + 20581345.

It is an arithmetic number, because the mean of its divisors is an integer number (10419061803150).

Almost surely, 2^{142521043145644} is an apocalyptic number.

It is an amenable number.

142521043145644 is a deficient number, since it is larger than the sum of its proper divisors (107536440129956).

142521043145644 is a wasteful number, since it uses less digits than its factorization.

142521043145644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32354913 (or 32354911 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 46.

The spelling of 142521043145644 in words is "one hundred forty-two trillion, five hundred twenty-one billion, forty-three million, one hundred forty-five thousand, six hundred forty-four".