144380833 has 4 divisors (see below), whose sum is σ = 144439108. Its totient is φ = 144322560.

The previous prime is 144380809. The next prime is 144380869. The reversal of 144380833 is 338083441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 338083441 = 1553 ⋅217697.

It can be written as a sum of positive squares in 2 ways, for example, as 76615009 + 67765824 = 8753^2 + 8232^2 .

It is a cyclic number.

It is not a de Polignac number, because 144380833 - 2¹⁷ = 144249761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144380893) 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, 25248 + ... + 30433.

It is an arithmetic number, because the mean of its divisors is an integer number (36109777).

Almost surely, 2^144380833 is an apocalyptic number.

It is an amenable number.

144380833 is a deficient number, since it is larger than the sum of its proper divisors (58275).

144380833 is an equidigital number, since it uses as much as digits as its factorization.

144380833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58274.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 144380833 is about 12015.8575640692. The cubic root of 144380833 is about 524.6099391408.

The spelling of 144380833 in words is "one hundred forty-four million, three hundred eighty thousand, eight hundred thirty-three".