144580613 has 4 divisors (see below), whose sum is σ = 145217760. Its totient is φ = 143943468.

The previous prime is 144580609. The next prime is 144580649. The reversal of 144580613 is 316085441.

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.

It is a cyclic number.

It is not a de Polignac number, because 144580613 - 2² = 144580609 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 144580613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144580913) 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, 318233 + ... + 318686.

It is an arithmetic number, because the mean of its divisors is an integer number (36304440).

Almost surely, 2^144580613 is an apocalyptic number.

It is an amenable number.

144580613 is a deficient number, since it is larger than the sum of its proper divisors (637147).

144580613 is an equidigital number, since it uses as much as digits as its factorization.

144580613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637146.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 144580613 is about 12024.1678714163. The cubic root of 144580613 is about 524.8517955060.

The spelling of 144580613 in words is "one hundred forty-four million, five hundred eighty thousand, six hundred thirteen".