144691319 has 2 divisors, whose sum is σ = 144691320. Its totient is φ = 144691318.

The previous prime is 144691303. The next prime is 144691363. The reversal of 144691319 is 913196441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144691319 - 2⁴ = 144691303 is a prime.

It is a super-2 number, since 2×144691319² = 41871155587919522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144691819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72345659 + 72345660.

It is an arithmetic number, because the mean of its divisors is an integer number (72345660).

Almost surely, 2^144691319 is an apocalyptic number.

144691319 is a deficient number, since it is larger than the sum of its proper divisors (1).

144691319 is an equidigital number, since it uses as much as digits as its factorization.

144691319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 38.

The square root of 144691319 is about 12028.7704691710. The cubic root of 144691319 is about 524.9857217583.

The spelling of 144691319 in words is "one hundred forty-four million, six hundred ninety-one thousand, three hundred nineteen".