144861020 has 24 divisors (see below), whose sum is σ = 305211984. Its totient is φ = 57753216.

The previous prime is 144861019. The next prime is 144861037. The reversal of 144861020 is 20168441.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 5657 + ... + 17936.

It is an arithmetic number, because the mean of its divisors is an integer number (12717166).

Almost surely, 2^144861020 is an apocalyptic number.

144861020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144861020 is an abundant number, since it is smaller than the sum of its proper divisors (160350964).

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

144861020 is a wasteful number, since it uses less digits than its factorization.

144861020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23909 (or 23907 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 144861020 is about 12035.8223649238. The cubic root of 144861020 is about 525.1908844807.

The spelling of 144861020 in words is "one hundred forty-four million, eight hundred sixty-one thousand, twenty".