144528913 has 4 divisors (see below), whose sum is σ = 149191168. Its totient is φ = 139866660.

The previous prime is 144528911. The next prime is 144528929. The reversal of 144528913 is 319825441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 319825441 = 13 ⋅24601957.

It is a cyclic number.

It is not a de Polignac number, because 144528913 - 2¹ = 144528911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144528911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2331081 + ... + 2331142.

It is an arithmetic number, because the mean of its divisors is an integer number (37297792).

Almost surely, 2^144528913 is an apocalyptic number.

It is an amenable number.

144528913 is a deficient number, since it is larger than the sum of its proper divisors (4662255).

144528913 is an equidigital number, since it uses as much as digits as its factorization.

144528913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4662254.

The product of its digits is 34560, while the sum is 37.

The square root of 144528913 is about 12022.0178422759. The cubic root of 144528913 is about 524.7892281667.

The spelling of 144528913 in words is "one hundred forty-four million, five hundred twenty-eight thousand, nine hundred thirteen".