144429907 has 4 divisors (see below), whose sum is σ = 148333456. Its totient is φ = 140526360.

The previous prime is 144429893. The next prime is 144429913. The reversal of 144429907 is 709924441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 709924441 = 757 ⋅937813.

It is a cyclic number.

It is not a de Polignac number, because 144429907 - 2²⁷ = 10212179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144429907.

It is not an unprimeable number, because it can be changed into a prime (144429937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1951719 + ... + 1951792.

It is an arithmetic number, because the mean of its divisors is an integer number (37083364).

Almost surely, 2^144429907 is an apocalyptic number.

144429907 is a deficient number, since it is larger than the sum of its proper divisors (3903549).

144429907 is an equidigital number, since it uses as much as digits as its factorization.

144429907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3903548.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 144429907 is about 12017.8994420822. The cubic root of 144429907 is about 524.6693694483.

The spelling of 144429907 in words is "one hundred forty-four million, four hundred twenty-nine thousand, nine hundred seven".