144524465 has 4 divisors (see below), whose sum is σ = 173429364. Its totient is φ = 115619568.

The previous prime is 144524461. The next prime is 144524477. The reversal of 144524465 is 564425441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41319184 + 103205281 = 6428^2 + 10159^2 .

It is a cyclic number.

It is not a de Polignac number, because 144524465 - 2² = 144524461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (144524461) 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, 14452442 + ... + 14452451.

It is an arithmetic number, because the mean of its divisors is an integer number (43357341).

Almost surely, 2^144524465 is an apocalyptic number.

It is an amenable number.

144524465 is a deficient number, since it is larger than the sum of its proper divisors (28904899).

144524465 is an equidigital number, since it uses as much as digits as its factorization.

144524465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28904898.

The product of its digits is 76800, while the sum is 35.

The square root of 144524465 is about 12021.8328469498. The cubic root of 144524465 is about 524.7838445001.

The spelling of 144524465 in words is "one hundred forty-four million, five hundred twenty-four thousand, four hundred sixty-five".