144667013 has 4 divisors (see below), whose sum is σ = 145315968. Its totient is φ = 144018060.

The previous prime is 144667009. The next prime is 144667021. The reversal of 144667013 is 310766441.

144667013 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310766441 = 37 ⋅8399093.

It is a cyclic number.

It is not a de Polignac number, because 144667013 - 2² = 144667009 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 (144667043) 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, 324143 + ... + 324588.

It is an arithmetic number, because the mean of its divisors is an integer number (36328992).

Almost surely, 2^144667013 is an apocalyptic number.

It is an amenable number.

144667013 is a deficient number, since it is larger than the sum of its proper divisors (648955).

144667013 is an equidigital number, since it uses as much as digits as its factorization.

144667013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648954.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 144667013 is about 12027.7600990376. The cubic root of 144667013 is about 524.9563235018.

The spelling of 144667013 in words is "one hundred forty-four million, six hundred sixty-seven thousand, thirteen".