144477723 has 16 divisors (see below), whose sum is σ = 207841536. Its totient is φ = 88743840.

The previous prime is 144477719. The next prime is 144477733. The reversal of 144477723 is 327774441.

It is not a de Polignac number, because 144477723 - 2² = 144477719 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (144477733) 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 15 ways as a sum of consecutive naturals, for example, 19738 + ... + 26048.

It is an arithmetic number, because the mean of its divisors is an integer number (12990096).

Almost surely, 2^144477723 is an apocalyptic number.

144477723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

144477723 is a deficient number, since it is larger than the sum of its proper divisors (63363813).

144477723 is a wasteful number, since it uses less digits than its factorization.

144477723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6914.

The product of its digits is 131712, while the sum is 39.

The square root of 144477723 is about 12019.8886434110. Note that the first 3 decimals coincide. The cubic root of 144477723 is about 524.7272633269.

The spelling of 144477723 in words is "one hundred forty-four million, four hundred seventy-seven thousand, seven hundred twenty-three".