144081115 has 4 divisors (see below), whose sum is σ = 172897344. Its totient is φ = 115264888.

The previous prime is 144081107. The next prime is 144081143. The reversal of 144081115 is 511180441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 511180441 = 229 ⋅2232229.

It is a cyclic number.

It is not a de Polignac number, because 144081115 - 2³ = 144081107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144081115.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14408107 + ... + 14408116.

It is an arithmetic number, because the mean of its divisors is an integer number (43224336).

Almost surely, 2^144081115 is an apocalyptic number.

144081115 is a deficient number, since it is larger than the sum of its proper divisors (28816229).

144081115 is an equidigital number, since it uses as much as digits as its factorization.

144081115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28816228.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 144081115 is about 12003.3793158427. The cubic root of 144081115 is about 524.2466777006.

The spelling of 144081115 in words is "one hundred forty-four million, eighty-one thousand, one hundred fifteen".