144738765015 has 32 divisors (see below), whose sum is σ = 249659698176. Its totient is φ = 71180672640.

The previous prime is 144738764993. The next prime is 144738765019. The reversal of 144738765015 is 510567837441.

It is a happy number.

It is not a de Polignac number, because 144738765015 - 2¹⁹ = 144738240727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144738765019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207231 + ... + 576560.

It is an arithmetic number, because the mean of its divisors is an integer number (7801865568).

Almost surely, 2^144738765015 is an apocalyptic number.

144738765015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144738765015 is a deficient number, since it is larger than the sum of its proper divisors (104920933161).

144738765015 is a wasteful number, since it uses less digits than its factorization.

144738765015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784759.

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 144738765015 in words is "one hundred forty-four billion, seven hundred thirty-eight million, seven hundred sixty-five thousand, fifteen".