144240115 has 16 divisors (see below), whose sum is σ = 182553120. Its totient is φ = 109105920.

The previous prime is 144240059. The next prime is 144240119. The reversal of 144240115 is 511042441.

It is not a de Polignac number, because 144240115 - 2¹⁹ = 143715827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144240119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61647 + ... + 63943.

It is an arithmetic number, because the mean of its divisors is an integer number (11409570).

Almost surely, 2^144240115 is an apocalyptic number.

144240115 is a deficient number, since it is larger than the sum of its proper divisors (38313005).

144240115 is a wasteful number, since it uses less digits than its factorization.

144240115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2982.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 144240115 is about 12010.0006244796. Note that the first 3 decimals coincide. The cubic root of 144240115 is about 524.4394500808.

Adding to 144240115 its reverse (511042441), we get a palindrome (655282556).

The spelling of 144240115 in words is "one hundred forty-four million, two hundred forty thousand, one hundred fifteen".