144432885 has 32 divisors (see below), whose sum is σ = 236234880. Its totient is φ = 75331328.

The previous prime is 144432881. The next prime is 144432887. The reversal of 144432885 is 588234441.

It is a cyclic number.

It is not a de Polignac number, because 144432885 - 2² = 144432881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144432881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 259027 + ... + 259583.

It is an arithmetic number, because the mean of its divisors is an integer number (7382340).

Almost surely, 2^144432885 is an apocalyptic number.

144432885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144432885 is a deficient number, since it is larger than the sum of its proper divisors (91801995).

144432885 is a wasteful number, since it uses less digits than its factorization.

144432885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917.

The product of its digits is 122880, while the sum is 39.

The square root of 144432885 is about 12018.0233399674. The cubic root of 144432885 is about 524.6729754758.

The spelling of 144432885 in words is "one hundred forty-four million, four hundred thirty-two thousand, eight hundred eighty-five".