144540419 has 2 divisors, whose sum is σ = 144540420. Its totient is φ = 144540418.

The previous prime is 144540397. The next prime is 144540469. The reversal of 144540419 is 914045441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144540419 - 2¹² = 144536323 is a prime.

It is a super-2 number, since 2×144540419² = 41783865449391122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144540469) 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 as a sum of consecutive naturals, namely, 72270209 + 72270210.

It is an arithmetic number, because the mean of its divisors is an integer number (72270210).

Almost surely, 2^144540419 is an apocalyptic number.

144540419 is a deficient number, since it is larger than the sum of its proper divisors (1).

144540419 is an equidigital number, since it uses as much as digits as its factorization.

144540419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 144540419 is about 12022.4963713864. The cubic root of 144540419 is about 524.8031540184.

The spelling of 144540419 in words is "one hundred forty-four million, five hundred forty thousand, four hundred nineteen".