144442936515 has 16 divisors (see below), whose sum is σ = 238563818496. Its totient is φ = 74551192800.

The previous prime is 144442936493. The next prime is 144442936591. The reversal of 144442936515 is 515639244441.

It is not a de Polignac number, because 144442936515 - 2⁸ = 144442936259 is a prime.

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, 155314521 + ... + 155315450.

It is an arithmetic number, because the mean of its divisors is an integer number (14910238656).

Almost surely, 2^144442936515 is an apocalyptic number.

144442936515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144442936515 is a deficient number, since it is larger than the sum of its proper divisors (94120881981).

144442936515 is a wasteful number, since it uses less digits than its factorization.

144442936515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310630010.

The product of its digits is 2073600, while the sum is 48.

The spelling of 144442936515 in words is "one hundred forty-four billion, four hundred forty-two million, nine hundred thirty-six thousand, five hundred fifteen".