144231115 has 8 divisors (see below), whose sum is σ = 197802720. Its totient is φ = 98901312.

The previous prime is 144231107. The next prime is 144231119. The reversal of 144231115 is 511132441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144231115 - 2³ = 144231107 is a prime.

It is a super-2 number, since 2×144231115² = 41605229068286450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144231119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2060410 + ... + 2060479.

It is an arithmetic number, because the mean of its divisors is an integer number (24725340).

Almost surely, 2^144231115 is an apocalyptic number.

144231115 is a deficient number, since it is larger than the sum of its proper divisors (53571605).

144231115 is an equidigital number, since it uses as much as digits as its factorization.

144231115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4120901.

The product of its digits is 480, while the sum is 22.

The square root of 144231115 is about 12009.6259308939. The cubic root of 144231115 is about 524.4285422202.

Adding to 144231115 its reverse (511132441), we get a palindrome (655363556).

The spelling of 144231115 in words is "one hundred forty-four million, two hundred thirty-one thousand, one hundred fifteen".