144394293 has 8 divisors (see below), whose sum is σ = 196622208. Its totient is φ = 94214624.

The previous prime is 144394279. The next prime is 144394309. The reversal of 144394293 is 392493441.

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

It is a cyclic number.

It is not a de Polignac number, because 144394293 - 2⁸ = 144394037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144394273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511896 + ... + 512177.

It is an arithmetic number, because the mean of its divisors is an integer number (24577776).

Almost surely, 2^144394293 is an apocalyptic number.

It is an amenable number.

144394293 is a deficient number, since it is larger than the sum of its proper divisors (52227915).

144394293 is a wasteful number, since it uses less digits than its factorization.

144394293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024123.

The product of its digits is 93312, while the sum is 39.

The square root of 144394293 is about 12016.4176442066. The cubic root of 144394293 is about 524.6262410054.

The spelling of 144394293 in words is "one hundred forty-four million, three hundred ninety-four thousand, two hundred ninety-three".