144732793 has 4 divisors (see below), whose sum is σ = 146715508. Its totient is φ = 142750080.

The previous prime is 144732751. The next prime is 144732799. The reversal of 144732793 is 397237441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 397237441 = 31 ⋅12814111.

It can be written as a sum of positive squares in 2 ways, for example, as 37982569 + 106750224 = 6163^2 + 10332^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144732793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144732799) 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, 991248 + ... + 991393.

It is an arithmetic number, because the mean of its divisors is an integer number (36678877).

Almost surely, 2^144732793 is an apocalyptic number.

It is an amenable number.

144732793 is a deficient number, since it is larger than the sum of its proper divisors (1982715).

144732793 is an equidigital number, since it uses as much as digits as its factorization.

144732793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982714.

The product of its digits is 127008, while the sum is 40.

The square root of 144732793 is about 12030.4942957470. The cubic root of 144732793 is about 525.0358772156.

The spelling of 144732793 in words is "one hundred forty-four million, seven hundred thirty-two thousand, seven hundred ninety-three".