142521043145601 has 32 divisors (see below), whose sum is σ = 208728953072640. Its totient is φ = 86098645030464.

The previous prime is 142521043145587. The next prime is 142521043145627. The reversal of 142521043145601 is 106541340125241.

It is not a de Polignac number, because 142521043145601 - 2⁷ = 142521043145473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142521043145601.

It is not an unprimeable number, because it can be changed into a prime (142521043105601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117909166 + ... + 119111768.

It is an arithmetic number, because the mean of its divisors is an integer number (6522779783520).

Almost surely, 2^{142521043145601} is an apocalyptic number.

It is an amenable number.

142521043145601 is a deficient number, since it is larger than the sum of its proper divisors (66207909927039).

142521043145601 is a wasteful number, since it uses less digits than its factorization.

142521043145601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293045.

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 142521043145601 in words is "one hundred forty-two trillion, five hundred twenty-one billion, forty-three million, one hundred forty-five thousand, six hundred one".