144347207 has 4 divisors (see below), whose sum is σ = 146324640. Its totient is φ = 142369776.

The previous prime is 144347179. The next prime is 144347233. The reversal of 144347207 is 702743441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 702743441 = 937 ⋅749993.

It is a cyclic number.

It is not a de Polignac number, because 144347207 - 2¹⁸ = 144085063 is a prime.

It is a super-2 number, since 2×144347207² = 41672232337401698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144347407) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 988607 + ... + 988752.

It is an arithmetic number, because the mean of its divisors is an integer number (36581160).

Almost surely, 2^144347207 is an apocalyptic number.

144347207 is a deficient number, since it is larger than the sum of its proper divisors (1977433).

144347207 is an equidigital number, since it uses as much as digits as its factorization.

144347207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977432.

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 144347207 is about 12014.4582482940. The cubic root of 144347207 is about 524.5692091189.

The spelling of 144347207 in words is "one hundred forty-four million, three hundred forty-seven thousand, two hundred seven".