144673345 has 4 divisors (see below), whose sum is σ = 173608020. Its totient is φ = 115738672.

The previous prime is 144673343. The next prime is 144673357. The reversal of 144673345 is 543376441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543376441 = 337 ⋅1612393.

It can be written as a sum of positive squares in 2 ways, for example, as 67092481 + 77580864 = 8191^2 + 8808^2 .

It is a cyclic number.

It is not a de Polignac number, because 144673345 - 2¹ = 144673343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144673343) 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, 14467330 + ... + 14467339.

It is an arithmetic number, because the mean of its divisors is an integer number (43402005).

Almost surely, 2^144673345 is an apocalyptic number.

It is an amenable number.

144673345 is a deficient number, since it is larger than the sum of its proper divisors (28934675).

144673345 is an equidigital number, since it uses as much as digits as its factorization.

144673345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28934674.

The product of its digits is 120960, while the sum is 37.

The square root of 144673345 is about 12028.0233205627. The cubic root of 144673345 is about 524.9639824119.

The spelling of 144673345 in words is "one hundred forty-four million, six hundred seventy-three thousand, three hundred forty-five".