144325561 has 4 divisors (see below), whose sum is σ = 144447732. Its totient is φ = 144203392.

The previous prime is 144325537. The next prime is 144325591. The reversal of 144325561 is 165523441.

It is a happy number.

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 56715961 + 87609600 = 7531^2 + 9360^2 .

It is a cyclic number.

It is not a de Polignac number, because 144325561 - 2¹¹ = 144323513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144325591) 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, 59296 + ... + 61681.

It is an arithmetic number, because the mean of its divisors is an integer number (36111933).

Almost surely, 2^144325561 is an apocalyptic number.

It is an amenable number.

144325561 is a deficient number, since it is larger than the sum of its proper divisors (122171).

144325561 is a wasteful number, since it uses less digits than its factorization.

144325561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122170.

The product of its digits is 14400, while the sum is 31.

The square root of 144325561 is about 12013.5573832233. The cubic root of 144325561 is about 524.5429867140.

The spelling of 144325561 in words is "one hundred forty-four million, three hundred twenty-five thousand, five hundred sixty-one".