144942477 has 8 divisors (see below), whose sum is σ = 193428864. Its totient is φ = 96542208.

The previous prime is 144942443. The next prime is 144942487. The reversal of 144942477 is 774249441.

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

It is not a de Polignac number, because 144942477 - 2⁷ = 144942349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144942487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17493 + ... + 24410.

It is an arithmetic number, because the mean of its divisors is an integer number (24178608).

Almost surely, 2^144942477 is an apocalyptic number.

It is an amenable number.

144942477 is a deficient number, since it is larger than the sum of its proper divisors (48486387).

144942477 is a wasteful number, since it uses less digits than its factorization.

144942477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43059.

The product of its digits is 225792, while the sum is 42.

The square root of 144942477 is about 12039.2058292896. The cubic root of 144942477 is about 525.2893063053.

The spelling of 144942477 in words is "one hundred forty-four million, nine hundred forty-two thousand, four hundred seventy-seven".