144117557 has 8 divisors (see below), whose sum is σ = 147744000. Its totient is φ = 140514544.

The previous prime is 144117503. The next prime is 144117577. The reversal of 144117557 is 755711441.

144117557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 144117557 - 2²⁶ = 77008693 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 (144117577) 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, 6944 + ... + 18342.

It is an arithmetic number, because the mean of its divisors is an integer number (18468000).

Almost surely, 2^144117557 is an apocalyptic number.

It is an amenable number.

144117557 is a deficient number, since it is larger than the sum of its proper divisors (3626443).

144117557 is a wasteful number, since it uses less digits than its factorization.

144117557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11715.

The product of its digits is 19600, while the sum is 35.

The square root of 144117557 is about 12004.8972090560. The cubic root of 144117557 is about 524.2908726829.

Adding to 144117557 its reverse (755711441), we get a palindrome (899828998).

The spelling of 144117557 in words is "one hundred forty-four million, one hundred seventeen thousand, five hundred fifty-seven".