144613387 has 4 divisors (see below), whose sum is σ = 144655056. Its totient is φ = 144571720.

The previous prime is 144613379. The next prime is 144613409. The reversal of 144613387 is 783316441.

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 144613387 - 2³ = 144613379 is a prime.

It is a super-2 number, since 2×144613387² = 41826063399223538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144613327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15103 + ... + 22744.

It is an arithmetic number, because the mean of its divisors is an integer number (36163764).

Almost surely, 2^144613387 is an apocalyptic number.

144613387 is a deficient number, since it is larger than the sum of its proper divisors (41669).

144613387 is an equidigital number, since it uses as much as digits as its factorization.

144613387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41668.

The product of its digits is 48384, while the sum is 37.

The square root of 144613387 is about 12025.5306327829. The cubic root of 144613387 is about 524.8914508761.

The spelling of 144613387 in words is "one hundred forty-four million, six hundred thirteen thousand, three hundred eighty-seven".