144872667 has 24 divisors (see below), whose sum is σ = 212625504. Its totient is φ = 95042304.

The previous prime is 144872627. The next prime is 144872669. The reversal of 144872667 is 766278441.

It is not a de Polignac number, because 144872667 - 2¹¹ = 144870619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144872669) 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 23 ways as a sum of consecutive naturals, for example, 169413 + ... + 170265.

It is an arithmetic number, because the mean of its divisors is an integer number (8859396).

Almost surely, 2^144872667 is an apocalyptic number.

144872667 is a deficient number, since it is larger than the sum of its proper divisors (67752837).

144872667 is a wasteful number, since it uses less digits than its factorization.

144872667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139 (or 1136 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 144872667 is about 12036.3062024859. The cubic root of 144872667 is about 525.2049594294.

The spelling of 144872667 in words is "one hundred forty-four million, eight hundred seventy-two thousand, six hundred sixty-seven".