144887247 has 6 divisors (see below), whose sum is σ = 209281592. Its totient is φ = 96591492.

The previous prime is 144887233. The next prime is 144887263. The reversal of 144887247 is 742788441.

It is not a de Polignac number, because 144887247 - 2²² = 140692943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144887647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8049283 + ... + 8049300.

Almost surely, 2^144887247 is an apocalyptic number.

144887247 is a deficient number, since it is larger than the sum of its proper divisors (64394345).

144887247 is a wasteful number, since it uses less digits than its factorization.

144887247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16098589 (or 16098586 counting only the distinct ones).

The product of its digits is 401408, while the sum is 45.

The square root of 144887247 is about 12036.9118547907. The cubic root of 144887247 is about 525.2225777320. Note that the first 3 decimals are identical.

The spelling of 144887247 in words is "one hundred forty-four million, eight hundred eighty-seven thousand, two hundred forty-seven".