144161243 has 4 divisors (see below), whose sum is σ = 144386088. Its totient is φ = 143936400.

The previous prime is 144161197. The next prime is 144161273. The reversal of 144161243 is 342161441.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 144161243 - 2¹² = 144157147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144161273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111458 + ... + 112743.

It is an arithmetic number, because the mean of its divisors is an integer number (36096522).

Almost surely, 2^144161243 is an apocalyptic number.

144161243 is a deficient number, since it is larger than the sum of its proper divisors (224845).

144161243 is an equidigital number, since it uses as much as digits as its factorization.

144161243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224844.

The product of its digits is 2304, while the sum is 26.

The square root of 144161243 is about 12006.7165786488. The cubic root of 144161243 is about 524.3438429978.

The spelling of 144161243 in words is "one hundred forty-four million, one hundred sixty-one thousand, two hundred forty-three".