144906749 has 8 divisors (see below), whose sum is σ = 164267040. Its totient is φ = 126719856.

The previous prime is 144906737. The next prime is 144906757. The reversal of 144906749 is 947609441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144906749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144906709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293087 + ... + 293580.

It is an arithmetic number, because the mean of its divisors is an integer number (20533380).

Almost surely, 2^144906749 is an apocalyptic number.

144906749 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

144906749 is a deficient number, since it is larger than the sum of its proper divisors (19360291).

144906749 is a wasteful number, since it uses less digits than its factorization.

144906749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586699.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 144906749 is about 12037.7219190343. The cubic root of 144906749 is about 525.2461418744.

The spelling of 144906749 in words is "one hundred forty-four million, nine hundred six thousand, seven hundred forty-nine".