144641287 has 24 divisors (see below), whose sum is σ = 180247680. Its totient is φ = 115315200.

The previous prime is 144641221. The next prime is 144641291. The reversal of 144641287 is 782146441.

It is a happy number.

It is not a de Polignac number, because 144641287 - 2²⁷ = 10423559 is a prime.

It is a super-2 number, since 2×144641287² = 41842203810032738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144641297) 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 23 ways as a sum of consecutive naturals, for example, 73162 + ... + 75112.

It is an arithmetic number, because the mean of its divisors is an integer number (7510320).

Almost surely, 2^144641287 is an apocalyptic number.

144641287 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

144641287 is a deficient number, since it is larger than the sum of its proper divisors (35606393).

144641287 is a wasteful number, since it uses less digits than its factorization.

144641287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071 (or 2064 counting only the distinct ones).

The product of its digits is 43008, while the sum is 37.

The square root of 144641287 is about 12026.6906088084. The cubic root of 144641287 is about 524.9252041593.

It can be divided in two parts, 14464 and 1287, that added together give a palindrome (15751).

The spelling of 144641287 in words is "one hundred forty-four million, six hundred forty-one thousand, two hundred eighty-seven".