144509894 has 8 divisors (see below), whose sum is σ = 229515768. Its totient is φ = 68004640.

The previous prime is 144509887. The next prime is 144509903. The reversal of 144509894 is 498905441.

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

It is a congruent number.

It is an unprimeable number.

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, 2125112 + ... + 2125179.

It is an arithmetic number, because the mean of its divisors is an integer number (28689471).

Almost surely, 2^144509894 is an apocalyptic number.

144509894 is a deficient number, since it is larger than the sum of its proper divisors (85005874).

144509894 is a wasteful number, since it uses less digits than its factorization.

144509894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250310.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 144509894 is about 12021.2268092737. The cubic root of 144509894 is about 524.7662076191.

The spelling of 144509894 in words is "one hundred forty-four million, five hundred nine thousand, eight hundred ninety-four".