144554019 has 12 divisors (see below), whose sum is σ = 193936536. Its totient is φ = 95772672.

The previous prime is 144554017. The next prime is 144554027. The reversal of 144554019 is 910455441.

It is not a de Polignac number, because 144554019 - 2¹ = 144554017 is a prime.

It is a super-2 number, since 2×144554019² = 41791728818104722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144554017) 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 11 ways as a sum of consecutive naturals, for example, 333627 + ... + 334059.

It is an arithmetic number, because the mean of its divisors is an integer number (16161378).

Almost surely, 2^144554019 is an apocalyptic number.

144554019 is a deficient number, since it is larger than the sum of its proper divisors (49382517).

144554019 is an frugal number, since it uses more digits than its factorization.

144554019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126 (or 693 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 144554019 is about 12023.0619644082. The cubic root of 144554019 is about 524.8196133108.

The spelling of 144554019 in words is "one hundred forty-four million, five hundred fifty-four thousand, nineteen".