142944293 has 8 divisors (see below), whose sum is σ = 145970328. Its totient is φ = 139947264.

The previous prime is 142944253. The next prime is 142944323. The reversal of 142944293 is 392449241.

It can be written as a sum of positive squares in 4 ways, for example, as 1643524 + 141300769 = 1282^2 + 11887^2 .

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 142944293 - 2⁸ = 142944037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142944203) 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, 2855 + ... + 17147.

It is an arithmetic number, because the mean of its divisors is an integer number (18246291).

Almost surely, 2^142944293 is an apocalyptic number.

It is an amenable number.

142944293 is a deficient number, since it is larger than the sum of its proper divisors (3026035).

142944293 is a wasteful number, since it uses less digits than its factorization.

142944293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14503.

The product of its digits is 62208, while the sum is 38.

The square root of 142944293 is about 11955.9312895316. The cubic root of 142944293 is about 522.8642399704.

The spelling of 142944293 in words is "one hundred forty-two million, nine hundred forty-four thousand, two hundred ninety-three".