144417407 has 4 divisors (see below), whose sum is σ = 144483816. Its totient is φ = 144351000.

The previous prime is 144417389. The next prime is 144417409. The reversal of 144417407 is 704714441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704714441 = 9067 ⋅77723.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144417407 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 (144417409) 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, 29828 + ... + 34329.

It is an arithmetic number, because the mean of its divisors is an integer number (36120954).

Almost surely, 2^144417407 is an apocalyptic number.

144417407 is a deficient number, since it is larger than the sum of its proper divisors (66409).

144417407 is an equidigital number, since it uses as much as digits as its factorization.

144417407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66408.

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 144417407 is about 12017.3793732244. The cubic root of 144417407 is about 524.6542327949.

The spelling of 144417407 in words is "one hundred forty-four million, four hundred seventeen thousand, four hundred seven".