144591147 has 6 divisors (see below), whose sum is σ = 208853892. Its totient is φ = 96394092.

The previous prime is 144591131. The next prime is 144591149. The reversal of 144591147 is 741195441.

It is not a de Polignac number, because 144591147 - 2⁴ = 144591131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144591149) 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 5 ways as a sum of consecutive naturals, for example, 8032833 + ... + 8032850.

It is an arithmetic number, because the mean of its divisors is an integer number (34808982).

Almost surely, 2^144591147 is an apocalyptic number.

144591147 is a deficient number, since it is larger than the sum of its proper divisors (64262745).

144591147 is a wasteful number, since it uses less digits than its factorization.

144591147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16065689 (or 16065686 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 144591147 is about 12024.6058979078. The cubic root of 144591147 is about 524.8645419235.

The spelling of 144591147 in words is "one hundred forty-four million, five hundred ninety-one thousand, one hundred forty-seven".