144994451 has 8 divisors (see below), whose sum is σ = 165798144. Its totient is φ = 124213320.

The previous prime is 144994441. The next prime is 144994459. The reversal of 144994451 is 154499441.

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

It is a de Polignac number, because none of the positive numbers 2^k-144994451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144994399 and 144994408.

It is not an unprimeable number, because it can be changed into a prime (144994459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11696 + ... + 20658.

It is an arithmetic number, because the mean of its divisors is an integer number (20724768).

Almost surely, 2^144994451 is an apocalyptic number.

144994451 is a deficient number, since it is larger than the sum of its proper divisors (20803693).

144994451 is an equidigital number, since it uses as much as digits as its factorization.

144994451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11281.

The product of its digits is 103680, while the sum is 41.

The square root of 144994451 is about 12041.3641669040. The cubic root of 144994451 is about 525.3520855180.

The spelling of 144994451 in words is "one hundred forty-four million, nine hundred ninety-four thousand, four hundred fifty-one".