144747478 has 8 divisors (see below), whose sum is σ = 222989472. Its totient is φ = 70417656.

The previous prime is 144747461. The next prime is 144747479. The reversal of 144747478 is 874747441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144747479) 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, 977950 + ... + 978097.

It is an arithmetic number, because the mean of its divisors is an integer number (27873684).

Almost surely, 2^144747478 is an apocalyptic number.

144747478 is a deficient number, since it is larger than the sum of its proper divisors (78241994).

144747478 is a wasteful number, since it uses less digits than its factorization.

144747478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956086.

The product of its digits is 702464, while the sum is 46.

The square root of 144747478 is about 12031.1046043163. The cubic root of 144747478 is about 525.0536338252.

It can be divided in two parts, 14474 and 7478, that added together give a cube (21952 = 28³).

The spelling of 144747478 in words is "one hundred forty-four million, seven hundred forty-seven thousand, four hundred seventy-eight".