144727403 has 4 divisors (see below), whose sum is σ = 144852168. Its totient is φ = 144602640.

The previous prime is 144727399. The next prime is 144727421. The reversal of 144727403 is 304727441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304727441 = 311 ⋅979831.

It is a cyclic number.

It is not a de Polignac number, because 144727403 - 2² = 144727399 is a prime.

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 144727403.

It is not an unprimeable number, because it can be changed into a prime (144727423) 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 3 ways as a sum of consecutive naturals, for example, 60626 + ... + 62967.

It is an arithmetic number, because the mean of its divisors is an integer number (36213042).

Almost surely, 2^144727403 is an apocalyptic number.

144727403 is a deficient number, since it is larger than the sum of its proper divisors (124765).

144727403 is a wasteful number, since it uses less digits than its factorization.

144727403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124764.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 144727403 is about 12030.2702795906. The cubic root of 144727403 is about 525.0293595070.

The spelling of 144727403 in words is "one hundred forty-four million, seven hundred twenty-seven thousand, four hundred three".