144172624 has 20 divisors (see below), whose sum is σ = 279535060. Its totient is φ = 72034560.

The previous prime is 144172621. The next prime is 144172649. The reversal of 144172624 is 426271441.

It can be written as a sum of positive squares in 2 ways, for example, as 111682624 + 32490000 = 10568^2 + 5700^2 .

It is a super-2 number, since 2×144172624² = 41571491022090752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144172621) 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 3 ways as a sum of consecutive naturals, for example, 30244 + ... + 34684.

It is an arithmetic number, because the mean of its divisors is an integer number (13976753).

Almost surely, 2^144172624 is an apocalyptic number.

It is an amenable number.

144172624 is a deficient number, since it is larger than the sum of its proper divisors (135362436).

144172624 is a wasteful number, since it uses less digits than its factorization.

144172624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6478 (or 6472 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 144172624 is about 12007.1905123555. The cubic root of 144172624 is about 524.3576409741.

The spelling of 144172624 in words is "one hundred forty-four million, one hundred seventy-two thousand, six hundred twenty-four".