144955519 has 2 divisors, whose sum is σ = 144955520. Its totient is φ = 144955518.

The previous prime is 144955513. The next prime is 144955553. The reversal of 144955519 is 915559441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144955519 - 2³ = 144955511 is a prime.

It is a super-2 number, since 2×144955519² = 42024204977118722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144955511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72477759 + 72477760.

It is an arithmetic number, because the mean of its divisors is an integer number (72477760).

Almost surely, 2^144955519 is an apocalyptic number.

144955519 is a deficient number, since it is larger than the sum of its proper divisors (1).

144955519 is an equidigital number, since it uses as much as digits as its factorization.

144955519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 43.

The square root of 144955519 is about 12039.7474641290. The cubic root of 144955519 is about 525.3050611018.

The spelling of 144955519 in words is "one hundred forty-four million, nine hundred fifty-five thousand, five hundred nineteen".