144157317 has 8 divisors (see below), whose sum is σ = 193593120. Its totient is φ = 95413200.

The previous prime is 144157309. The next prime is 144157337. The reversal of 144157317 is 713751441.

It is a happy number.

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

It is not a de Polignac number, because 144157317 - 2³ = 144157309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144157337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172434 + ... + 173267.

It is an arithmetic number, because the mean of its divisors is an integer number (24199140).

Almost surely, 2^144157317 is an apocalyptic number.

It is an amenable number.

144157317 is a deficient number, since it is larger than the sum of its proper divisors (49435803).

144157317 is a wasteful number, since it uses less digits than its factorization.

144157317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345843.

The product of its digits is 11760, while the sum is 33.

The square root of 144157317 is about 12006.5530857112. The cubic root of 144157317 is about 524.3390830671.

The spelling of 144157317 in words is "one hundred forty-four million, one hundred fifty-seven thousand, three hundred seventeen".