72319151 has 2 divisors, whose sum is σ = 72319152. Its totient is φ = 72319150.

The previous prime is 72319141. The next prime is 72319157. The reversal of 72319151 is 15191327.

It is a strong prime.

It is an emirp because it is prime and its reverse (15191327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72319151 - 2¹⁴ = 72302767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72319157) 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, 36159575 + 36159576.

It is an arithmetic number, because the mean of its divisors is an integer number (36159576).

Almost surely, 2^72319151 is an apocalyptic number.

72319151 is a deficient number, since it is larger than the sum of its proper divisors (1).

72319151 is an equidigital number, since it uses as much as digits as its factorization.

72319151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1890, while the sum is 29.

The square root of 72319151 is about 8504.0667330401. The cubic root of 72319151 is about 416.6305445663.

The spelling of 72319151 in words is "seventy-two million, three hundred nineteen thousand, one hundred fifty-one".