144650613 has 4 divisors (see below), whose sum is σ = 192867488. Its totient is φ = 96433740.

The previous prime is 144650573. The next prime is 144650617. The reversal of 144650613 is 316056441.

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: 316056441 = 3 ⋅105352147.

It is not a de Polignac number, because 144650613 - 2¹⁷ = 144519541 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 (144650617) 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, 24108433 + ... + 24108438.

It is an arithmetic number, because the mean of its divisors is an integer number (48216872).

Almost surely, 2^144650613 is an apocalyptic number.

It is an amenable number.

144650613 is a deficient number, since it is larger than the sum of its proper divisors (48216875).

144650613 is an equidigital number, since it uses as much as digits as its factorization.

144650613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48216874.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 144650613 is about 12027.0783235165. The cubic root of 144650613 is about 524.9364857404.

The spelling of 144650613 in words is "one hundred forty-four million, six hundred fifty thousand, six hundred thirteen".