144613457 has 4 divisors (see below), whose sum is σ = 145016640. Its totient is φ = 144210276.

The previous prime is 144613451. The next prime is 144613487. The reversal of 144613457 is 754316441.

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 144613457 - 2⁸ = 144613201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144613451) 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, 201053 + ... + 201770.

It is an arithmetic number, because the mean of its divisors is an integer number (36254160).

Almost surely, 2^144613457 is an apocalyptic number.

It is an amenable number.

144613457 is a deficient number, since it is larger than the sum of its proper divisors (403183).

144613457 is an equidigital number, since it uses as much as digits as its factorization.

144613457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403182.

The product of its digits is 40320, while the sum is 35.

The square root of 144613457 is about 12025.5335432570. The cubic root of 144613457 is about 524.8915355672.

Adding to 144613457 its reverse (754316441), we get a palindrome (898929898).

The spelling of 144613457 in words is "one hundred forty-four million, six hundred thirteen thousand, four hundred fifty-seven".