144918915 has 8 divisors (see below), whose sum is σ = 231870288. Its totient is φ = 77290080.

The previous prime is 144918889. The next prime is 144918919. The reversal of 144918915 is 519819441.

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

It is not a de Polignac number, because 144918915 - 2²² = 140724611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144918919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4830616 + ... + 4830645.

It is an arithmetic number, because the mean of its divisors is an integer number (28983786).

Almost surely, 2^144918915 is an apocalyptic number.

144918915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144918915 is a deficient number, since it is larger than the sum of its proper divisors (86951373).

144918915 is an equidigital number, since it uses as much as digits as its factorization.

144918915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9661269.

The product of its digits is 51840, while the sum is 42.

The square root of 144918915 is about 12038.2272365992. The cubic root of 144918915 is about 525.2608409039.

The spelling of 144918915 in words is "one hundred forty-four million, nine hundred eighteen thousand, nine hundred fifteen".