144733081 has 2 divisors, whose sum is σ = 144733082. Its totient is φ = 144733080.

The previous prime is 144733073. The next prime is 144733091. The reversal of 144733081 is 180337441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107827456 + 36905625 = 10384^2 + 6075^2 .

It is an emirp because it is prime and its reverse (180337441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144733081 - 2³ = 144733073 is a prime.

It is a super-2 number, since 2×144733081² = 41895329471505122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144733031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72366540 + 72366541.

It is an arithmetic number, because the mean of its divisors is an integer number (72366541).

Almost surely, 2^144733081 is an apocalyptic number.

It is an amenable number.

144733081 is a deficient number, since it is larger than the sum of its proper divisors (1).

144733081 is an equidigital number, since it uses as much as digits as its factorization.

144733081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 144733081 is about 12030.5062653240. The cubic root of 144733081 is about 525.0362254671.

The spelling of 144733081 in words is "one hundred forty-four million, seven hundred thirty-three thousand, eighty-one".