144718730 has 16 divisors (see below), whose sum is σ = 280531944. Its totient is φ = 53434560.

The previous prime is 144718711. The next prime is 144718747. The reversal of 144718730 is 37817441.

It can be written as a sum of positive squares in 4 ways, for example, as 133702969 + 11015761 = 11563^2 + 3319^2 .

It is an unprimeable number.

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, 556481 + ... + 556740.

Almost surely, 2^144718730 is an apocalyptic number.

144718730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144718730 is a deficient number, since it is larger than the sum of its proper divisors (135813214).

144718730 is a wasteful number, since it uses less digits than its factorization.

144718730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113241.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 144718730 is about 12029.9098084732. The cubic root of 144718730 is about 525.0188715817.

The spelling of 144718730 in words is "one hundred forty-four million, seven hundred eighteen thousand, seven hundred thirty".