144955391 has 8 divisors (see below), whose sum is σ = 165863040. Its totient is φ = 124097688.

The previous prime is 144955367. The next prime is 144955403. The reversal of 144955391 is 193559441.

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

It is a cyclic number.

It is not a de Polignac number, because 144955391 - 2¹⁸ = 144693247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144955691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6041 + ... + 18066.

It is an arithmetic number, because the mean of its divisors is an integer number (20732880).

Almost surely, 2^144955391 is an apocalyptic number.

144955391 is a deficient number, since it is larger than the sum of its proper divisors (20907649).

144955391 is an equidigital number, since it uses as much as digits as its factorization.

144955391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24973.

The product of its digits is 97200, while the sum is 41.

The square root of 144955391 is about 12039.7421484017. The cubic root of 144955391 is about 525.3049064818.

The spelling of 144955391 in words is "one hundred forty-four million, nine hundred fifty-five thousand, three hundred ninety-one".