144454547 has 8 divisors (see below), whose sum is σ = 147763200. Its totient is φ = 141155784.

The previous prime is 144454529. The next prime is 144454553. The reversal of 144454547 is 745454441.

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 144454547 - 2⁶ = 144454483 is a prime.

It is a super-2 number, since 2×144454547² = 41734232297950418, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144454547.

It is not an unprimeable number, because it can be changed into a prime (144454147) 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, 32654 + ... + 36812.

It is an arithmetic number, because the mean of its divisors is an integer number (18470400).

Almost surely, 2^144454547 is an apocalyptic number.

144454547 is a deficient number, since it is larger than the sum of its proper divisors (3308653).

144454547 is an equidigital number, since it uses as much as digits as its factorization.

144454547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4945.

The product of its digits is 179200, while the sum is 38.

The square root of 144454547 is about 12018.9245359142. The cubic root of 144454547 is about 524.6992042621.

The spelling of 144454547 in words is "one hundred forty-four million, four hundred fifty-four thousand, five hundred forty-seven".