144564601 has 4 divisors (see below), whose sum is σ = 146545012. Its totient is φ = 142584192.

The previous prime is 144564593. The next prime is 144564613. The reversal of 144564601 is 106465441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33051001 + 111513600 = 5749^2 + 10560^2 .

It is a cyclic number.

It is not a de Polignac number, because 144564601 - 2³ = 144564593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144564631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 990096 + ... + 990241.

It is an arithmetic number, because the mean of its divisors is an integer number (36636253).

Almost surely, 2^144564601 is an apocalyptic number.

It is an amenable number.

144564601 is a deficient number, since it is larger than the sum of its proper divisors (1980411).

144564601 is an equidigital number, since it uses as much as digits as its factorization.

144564601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980410.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 144564601 is about 12023.5020272797. The cubic root of 144564601 is about 524.8324193785.

The spelling of 144564601 in words is "one hundred forty-four million, five hundred sixty-four thousand, six hundred one".