144453505 has 16 divisors (see below), whose sum is σ = 209761920. Its totient is φ = 93226752.

The previous prime is 144453487. The next prime is 144453509. The reversal of 144453505 is 505354441.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 144453505 - 2⁵ = 144453473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144453509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120795 + ... + 121984.

It is an arithmetic number, because the mean of its divisors is an integer number (13110120).

Almost surely, 2^144453505 is an apocalyptic number.

It is an amenable number.

144453505 is a deficient number, since it is larger than the sum of its proper divisors (65308415).

144453505 is a wasteful number, since it uses less digits than its factorization.

144453505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242808.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 144453505 is about 12018.8811875316. The cubic root of 144453505 is about 524.6979426476.

The spelling of 144453505 in words is "one hundred forty-four million, four hundred fifty-three thousand, five hundred five".