144200861 has 8 divisors (see below), whose sum is σ = 173474880. Its totient is φ = 117095328.

The previous prime is 144200843. The next prime is 144200893. The reversal of 144200861 is 168002441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144200861 - 2¹⁰ = 144199837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144200861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144200821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541976 + ... + 542241.

It is an arithmetic number, because the mean of its divisors is an integer number (21684360).

Almost surely, 2^144200861 is an apocalyptic number.

It is an amenable number.

144200861 is a deficient number, since it is larger than the sum of its proper divisors (29274019).

144200861 is a wasteful number, since it uses less digits than its factorization.

144200861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084243.

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

The square root of 144200861 is about 12008.3662918817. The cubic root of 144200861 is about 524.3918715138.

The spelling of 144200861 in words is "one hundred forty-four million, two hundred thousand, eight hundred sixty-one".