144861860 has 48 divisors (see below), whose sum is σ = 357400512. Its totient is φ = 48624000.

The previous prime is 144861803. The next prime is 144861869. The reversal of 144861860 is 68168441.

It is not an unprimeable number, because it can be changed into a prime (144861869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22466 + ... + 28185.

It is an arithmetic number, because the mean of its divisors is an integer number (7445844).

Almost surely, 2^144861860 is an apocalyptic number.

144861860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144861860 is an abundant number, since it is smaller than the sum of its proper divisors (212538652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144861860 is a wasteful number, since it uses less digits than its factorization.

144861860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50684 (or 50682 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 144861860 is about 12035.8572607023. The cubic root of 144861860 is about 525.1918996134.

The spelling of 144861860 in words is "one hundred forty-four million, eight hundred sixty-one thousand, eight hundred sixty".