144471545 has 8 divisors (see below), whose sum is σ = 173476296. Its totient is φ = 115503616.

The previous prime is 144471539. The next prime is 144471553. The reversal of 144471545 is 545174441.

It can be written as a sum of positive squares in 4 ways, for example, as 40043584 + 104427961 = 6328^2 + 10219^2 .

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 144471545 - 2¹⁴ = 144455161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329 + ... + 17001.

It is an arithmetic number, because the mean of its divisors is an integer number (21684537).

Almost surely, 2^144471545 is an apocalyptic number.

It is an amenable number.

144471545 is a deficient number, since it is larger than the sum of its proper divisors (29004751).

144471545 is a wasteful number, since it uses less digits than its factorization.

144471545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18411.

The product of its digits is 44800, while the sum is 35.

The square root of 144471545 is about 12019.6316499300. The cubic root of 144471545 is about 524.7197839472.

The spelling of 144471545 in words is "one hundred forty-four million, four hundred seventy-one thousand, five hundred forty-five".