144986774 has 8 divisors (see below), whose sum is σ = 217976880. Its totient is φ = 72327816.

The previous prime is 144986771. The next prime is 144986789. The reversal of 144986774 is 477689441.

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 (144986771) 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 3 ways as a sum of consecutive naturals, for example, 81689 + ... + 83444.

It is an arithmetic number, because the mean of its divisors is an integer number (27247110).

Almost surely, 2^144986774 is an apocalyptic number.

144986774 is a deficient number, since it is larger than the sum of its proper divisors (72990106).

144986774 is a wasteful number, since it uses less digits than its factorization.

144986774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165574.

The product of its digits is 1354752, while the sum is 50.

The square root of 144986774 is about 12041.0453865103. The cubic root of 144986774 is about 525.3428134410.

It can be divided in two parts, 14 and 4986774, that multiplied together give a triangular number (69814836 = T₁₁₈₁₆).

The spelling of 144986774 in words is "one hundred forty-four million, nine hundred eighty-six thousand, seven hundred seventy-four".