144002947 has 12 divisors (see below), whose sum is σ = 162150408. Its totient is φ = 127714400.

The previous prime is 144002941. The next prime is 144002953. The reversal of 144002947 is 749200441.

It is an interprime number because it is at equal distance from previous prime (144002941) and next prime (144002953).

It is not a de Polignac number, because 144002947 - 2⁷ = 144002819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144002941) 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, 9553 + ... + 19474.

It is an arithmetic number, because the mean of its divisors is an integer number (13512534).

Almost surely, 2^144002947 is an apocalyptic number.

144002947 is a deficient number, since it is larger than the sum of its proper divisors (18147461).

144002947 is a wasteful number, since it uses less digits than its factorization.

144002947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29090 (or 29079 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 144002947 is about 12000.1227910384. The cubic root of 144002947 is about 524.1518544308.

The spelling of 144002947 in words is "one hundred forty-four million, two thousand, nine hundred forty-seven".