144955523 has 4 divisors (see below), whose sum is σ = 145642728. Its totient is φ = 144268320.

The previous prime is 144955519. The next prime is 144955553. The reversal of 144955523 is 325559441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325559441 = 113 ⋅2881057.

It is a cyclic number.

It is not a de Polignac number, because 144955523 - 2² = 144955519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144955513) 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, 343286 + ... + 343707.

It is an arithmetic number, because the mean of its divisors is an integer number (36410682).

Almost surely, 2^144955523 is an apocalyptic number.

144955523 is a deficient number, since it is larger than the sum of its proper divisors (687205).

144955523 is an equidigital number, since it uses as much as digits as its factorization.

144955523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687204.

The product of its digits is 108000, while the sum is 38.

The square root of 144955523 is about 12039.7476302454. The cubic root of 144955523 is about 525.3050659336.

The spelling of 144955523 in words is "one hundred forty-four million, nine hundred fifty-five thousand, five hundred twenty-three".