144691293 has 8 divisors (see below), whose sum is σ = 192982528. Its totient is φ = 96430464.

The previous prime is 144691271. The next prime is 144691297. The reversal of 144691293 is 392196441.

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

It is not a de Polignac number, because 144691293 - 2¹⁰ = 144690269 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 (144691297) 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, 8196 + ... + 18882.

It is an arithmetic number, because the mean of its divisors is an integer number (24122816).

Almost surely, 2^144691293 is an apocalyptic number.

It is an amenable number.

144691293 is a deficient number, since it is larger than the sum of its proper divisors (48291235).

144691293 is a wasteful number, since it uses less digits than its factorization.

144691293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15203.

The product of its digits is 46656, while the sum is 39.

The square root of 144691293 is about 12028.7693884287. The cubic root of 144691293 is about 524.9856903129.

The spelling of 144691293 in words is "one hundred forty-four million, six hundred ninety-one thousand, two hundred ninety-three".