144648619 has 2 divisors, whose sum is σ = 144648620. Its totient is φ = 144648618.

The previous prime is 144648611. The next prime is 144648643. The reversal of 144648619 is 916846441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144648619 - 2³ = 144648611 is a prime.

It is a super-2 number, since 2×144648619² = 41846445957214322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144648611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72324309 + 72324310.

It is an arithmetic number, because the mean of its divisors is an integer number (72324310).

Almost surely, 2^144648619 is an apocalyptic number.

144648619 is a deficient number, since it is larger than the sum of its proper divisors (1).

144648619 is an equidigital number, since it uses as much as digits as its factorization.

144648619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 43.

The square root of 144648619 is about 12026.9954269551. The cubic root of 144648619 is about 524.9340736567.

The spelling of 144648619 in words is "one hundred forty-four million, six hundred forty-eight thousand, six hundred nineteen".