144202293 has 12 divisors (see below), whose sum is σ = 208398060. Its totient is φ = 96086016.

The previous prime is 144202273. The next prime is 144202307. The reversal of 144202293 is 392202441.

144202293 is a `hidden beast` number, since 14 + 420 + 229 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 82846404 + 61355889 = 9102^2 + 7833^2 .

It is a de Polignac number, because none of the positive numbers 2^k-144202293 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144202213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27555 + ... + 32367.

It is an arithmetic number, because the mean of its divisors is an integer number (17366505).

Almost surely, 2^144202293 is an apocalyptic number.

It is an amenable number.

144202293 is a deficient number, since it is larger than the sum of its proper divisors (64195767).

144202293 is a wasteful number, since it uses less digits than its factorization.

144202293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8148 (or 8145 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 144202293 is about 12008.4259168302. The cubic root of 144202293 is about 524.3936073488.

The spelling of 144202293 in words is "one hundred forty-four million, two hundred two thousand, two hundred ninety-three".