144990015 has 8 divisors (see below), whose sum is σ = 231984048. Its totient is φ = 77328000.

The previous prime is 144989993. The next prime is 144990019. The reversal of 144990015 is 510099441.

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

It is not a de Polignac number, because 144990015 - 2¹¹ = 144987967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144990019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4832986 + ... + 4833015.

It is an arithmetic number, because the mean of its divisors is an integer number (28998006).

Almost surely, 2^144990015 is an apocalyptic number.

144990015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144990015 is a deficient number, since it is larger than the sum of its proper divisors (86994033).

144990015 is an equidigital number, since it uses as much as digits as its factorization.

144990015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9666009.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 144990015 is about 12041.1799670962. The cubic root of 144990015 is about 525.3467278748.

The spelling of 144990015 in words is "one hundred forty-four million, nine hundred ninety thousand, fifteen".