144914491 has 4 divisors (see below), whose sum is σ = 149589184. Its totient is φ = 140239800.

The previous prime is 144914461. The next prime is 144914503. The reversal of 144914491 is 194419441.

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 144914491 - 2¹³ = 144906299 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 144914491.

It is not an unprimeable number, because it can be changed into a prime (144914401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2337300 + ... + 2337361.

It is an arithmetic number, because the mean of its divisors is an integer number (37397296).

Almost surely, 2^144914491 is an apocalyptic number.

144914491 is a deficient number, since it is larger than the sum of its proper divisors (4674693).

144914491 is an equidigital number, since it uses as much as digits as its factorization.

144914491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4674692.

The product of its digits is 20736, while the sum is 37.

The square root of 144914491 is about 12038.0434872117. The cubic root of 144914491 is about 525.2554958975.

The spelling of 144914491 in words is "one hundred forty-four million, nine hundred fourteen thousand, four hundred ninety-one".