144140894 has 8 divisors (see below), whose sum is σ = 219876120. Its totient is φ = 70848856.

The previous prime is 144140891. The next prime is 144140903. The reversal of 144140894 is 498041441.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144140891) 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, 610649 + ... + 610884.

It is an arithmetic number, because the mean of its divisors is an integer number (27484515).

Almost surely, 2^144140894 is an apocalyptic number.

144140894 is a deficient number, since it is larger than the sum of its proper divisors (75735226).

144140894 is a wasteful number, since it uses less digits than its factorization.

144140894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221594.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 144140894 is about 12005.8691480459. The cubic root of 144140894 is about 524.3191706825.

The spelling of 144140894 in words is "one hundred forty-four million, one hundred forty thousand, eight hundred ninety-four".