144561856 has 14 divisors (see below), whose sum is σ = 286865060. Its totient is φ = 72280896.

The previous prime is 144561817. The next prime is 144561869. The reversal of 144561856 is 658165441.

It is a super-3 number, since 3×144561856³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1129326 + ... + 1129453.

Almost surely, 2^144561856 is an apocalyptic number.

144561856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

144561856 is a deficient number, since it is larger than the sum of its proper divisors (142303204).

144561856 is an equidigital number, since it uses as much as digits as its factorization.

144561856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258791 (or 2258781 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 144561856 is about 12023.3878753037. The cubic root of 144561856 is about 524.8290975092.

The spelling of 144561856 in words is "one hundred forty-four million, five hundred sixty-one thousand, eight hundred fifty-six".