144431707 has 8 divisors (see below), whose sum is σ = 165139200. Its totient is φ = 123742824.

The previous prime is 144431689. The next prime is 144431747. The reversal of 144431707 is 707134441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144431707 - 2¹⁹ = 143907419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144431747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22794 + ... + 28432.

It is an arithmetic number, because the mean of its divisors is an integer number (20642400).

Almost surely, 2^144431707 is an apocalyptic number.

144431707 is a deficient number, since it is larger than the sum of its proper divisors (20707493).

144431707 is an equidigital number, since it uses as much as digits as its factorization.

144431707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9305.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 144431707 is about 12017.9743301440. The cubic root of 144431707 is about 524.6715490544.

The spelling of 144431707 in words is "one hundred forty-four million, four hundred thirty-one thousand, seven hundred seven".