144489477 has 32 divisors (see below), whose sum is σ = 228576384. Its totient is φ = 80179200.

The previous prime is 144489413. The next prime is 144489479. The reversal of 144489477 is 774984441.

It is not a de Polignac number, because 144489477 - 2⁶ = 144489413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144489479) 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, 17277 + ... + 24237.

It is an arithmetic number, because the mean of its divisors is an integer number (7143012).

Almost surely, 2^144489477 is an apocalyptic number.

144489477 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

144489477 is a deficient number, since it is larger than the sum of its proper divisors (84086907).

144489477 is a wasteful number, since it uses less digits than its factorization.

144489477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7029.

The product of its digits is 903168, while the sum is 48.

The square root of 144489477 is about 12020.3775731048. The cubic root of 144489477 is about 524.7414926879.

The spelling of 144489477 in words is "one hundred forty-four million, four hundred eighty-nine thousand, four hundred seventy-seven".