144542021386 has 32 divisors (see below), whose sum is σ = 256357866240. Its totient is φ = 59804148096.

The previous prime is 144542021369. The next prime is 144542021441. The reversal of 144542021386 is 683120245441.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7386331 + ... + 7405873.

It is an arithmetic number, because the mean of its divisors is an integer number (8011183320).

Almost surely, 2^144542021386 is an apocalyptic number.

144542021386 is a deficient number, since it is larger than the sum of its proper divisors (111815844854).

144542021386 is a wasteful number, since it uses less digits than its factorization.

144542021386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37798.

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 144542021386 in words is "one hundred forty-four billion, five hundred forty-two million, twenty-one thousand, three hundred eighty-six".