144651272 has 8 divisors (see below), whose sum is σ = 271221150. Its totient is φ = 72325632.

The previous prime is 144651263. The next prime is 144651307. The reversal of 144651272 is 272156441.

It can be written as a sum of positive squares in only one way, i.e., 119990116 + 24661156 = 10954^2 + 4966^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9040697 + ... + 9040712.

Almost surely, 2^144651272 is an apocalyptic number.

It is an amenable number.

144651272 is a deficient number, since it is larger than the sum of its proper divisors (126569878).

144651272 is a wasteful number, since it uses less digits than its factorization.

144651272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18081415 (or 18081411 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 144651272 is about 12027.1057199976. The cubic root of 144651272 is about 524.9372829086.

The spelling of 144651272 in words is "one hundred forty-four million, six hundred fifty-one thousand, two hundred seventy-two".