144742207 has 4 divisors (see below), whose sum is σ = 145630360. Its totient is φ = 143854056.

The previous prime is 144742189. The next prime is 144742253. The reversal of 144742207 is 702247441.

144742207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 144742207 - 2⁷ = 144742079 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 (144742307) 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, 443832 + ... + 444157.

It is an arithmetic number, because the mean of its divisors is an integer number (36407590).

Almost surely, 2^144742207 is an apocalyptic number.

144742207 is a deficient number, since it is larger than the sum of its proper divisors (888153).

144742207 is an equidigital number, since it uses as much as digits as its factorization.

144742207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888152.

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

The square root of 144742207 is about 12030.8855451293. The cubic root of 144742207 is about 525.0472604469.

Adding to 144742207 its reverse (702247441), we get a palindrome (846989648).

The spelling of 144742207 in words is "one hundred forty-four million, seven hundred forty-two thousand, two hundred seven".