72149263 has 2 divisors, whose sum is σ = 72149264. Its totient is φ = 72149262.

The previous prime is 72149261. The next prime is 72149291. The reversal of 72149263 is 36294127.

It is a weak prime.

It is an emirp because it is prime and its reverse (36294127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72149263 - 2¹ = 72149261 is a prime.

Together with 72149261, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72149261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36074631 + 36074632.

It is an arithmetic number, because the mean of its divisors is an integer number (36074632).

Almost surely, 2^72149263 is an apocalyptic number.

72149263 is a deficient number, since it is larger than the sum of its proper divisors (1).

72149263 is an equidigital number, since it uses as much as digits as its factorization.

72149263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 34.

The square root of 72149263 is about 8494.0722271476. The cubic root of 72149263 is about 416.3040472465.

The spelling of 72149263 in words is "seventy-two million, one hundred forty-nine thousand, two hundred sixty-three".