72144299 has 2 divisors, whose sum is σ = 72144300. Its totient is φ = 72144298.

The previous prime is 72144283. The next prime is 72144313. The reversal of 72144299 is 99244127.

It is a strong prime.

It is an emirp because it is prime and its reverse (99244127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72144299 - 2⁴ = 72144283 is a prime.

It is not a weakly prime, because it can be changed into another prime (72143299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36072149 + 36072150.

It is an arithmetic number, because the mean of its divisors is an integer number (36072150).

Almost surely, 2^72144299 is an apocalyptic number.

72144299 is a deficient number, since it is larger than the sum of its proper divisors (1).

72144299 is an equidigital number, since it uses as much as digits as its factorization.

72144299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 72144299 is about 8493.7800183428. The cubic root of 72144299 is about 416.2944995367.

The spelling of 72144299 in words is "seventy-two million, one hundred forty-four thousand, two hundred ninety-nine".