144101720 has 32 divisors (see below), whose sum is σ = 370548000. Its totient is φ = 49406208.

The previous prime is 144101701. The next prime is 144101759. The reversal of 144101720 is 27101441.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 144101692 and 144101701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257045 + ... + 257604.

It is an arithmetic number, because the mean of its divisors is an integer number (11579625).

Almost surely, 2^144101720 is an apocalyptic number.

144101720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144101720 is an abundant number, since it is smaller than the sum of its proper divisors (226446280).

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

144101720 is a wasteful number, since it uses less digits than its factorization.

144101720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514667 (or 514663 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 144101720 is about 12004.2375851197. The cubic root of 144101720 is about 524.2716672997.

The spelling of 144101720 in words is "one hundred forty-four million, one hundred one thousand, seven hundred twenty".