144474007 has 4 divisors (see below), whose sum is σ = 152972496. Its totient is φ = 135975520.

The previous prime is 144473993. The next prime is 144474079. The reversal of 144474007 is 700474441.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-144474007 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 144474007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144474097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4249219 + ... + 4249252.

It is an arithmetic number, because the mean of its divisors is an integer number (38243124).

Almost surely, 2^144474007 is an apocalyptic number.

144474007 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

144474007 is a deficient number, since it is larger than the sum of its proper divisors (8498489).

144474007 is an equidigital number, since it uses as much as digits as its factorization.

144474007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8498488.

The product of its (nonzero) digits is 12544, while the sum is 31.

The square root of 144474007 is about 12019.7340652778. The cubic root of 144474007 is about 524.7227645867.

The spelling of 144474007 in words is "one hundred forty-four million, four hundred seventy-four thousand, seven".