144431337 has 16 divisors (see below), whose sum is σ = 204145920. Its totient is φ = 90515712.

The previous prime is 144431323. The next prime is 144431359. The reversal of 144431337 is 733134441.

It is not a de Polignac number, because 144431337 - 2⁴ = 144431321 is a prime.

It is a super-2 number, since 2×144431337² = 41720822215215138, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144431317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79839 + ... + 81627.

It is an arithmetic number, because the mean of its divisors is an integer number (12759120).

Almost surely, 2^144431337 is an apocalyptic number.

144431337 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

144431337 is a deficient number, since it is larger than the sum of its proper divisors (59714583).

144431337 is a wasteful number, since it uses less digits than its factorization.

144431337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3392.

The product of its digits is 12096, while the sum is 30.

The square root of 144431337 is about 12017.9589365250. The cubic root of 144431337 is about 524.6711010258.

Adding to 144431337 its reverse (733134441), we get a palindrome (877565778).

The spelling of 144431337 in words is "one hundred forty-four million, four hundred thirty-one thousand, three hundred thirty-seven".