72367231 has 2 divisors, whose sum is σ = 72367232. Its totient is φ = 72367230.

The previous prime is 72367201. The next prime is 72367261. The reversal of 72367231 is 13276327.

It is a balanced prime because it is at equal distance from previous prime (72367201) and next prime (72367261).

It is an emirp because it is prime and its reverse (13276327) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72367231 - 2⁵ = 72367199 is a prime.

It is a super-2 number, since 2×72367231² = 10474032245214722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72367193 and 72367202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72367201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36183615 + 36183616.

It is an arithmetic number, because the mean of its divisors is an integer number (36183616).

Almost surely, 2^72367231 is an apocalyptic number.

72367231 is a deficient number, since it is larger than the sum of its proper divisors (1).

72367231 is an equidigital number, since it uses as much as digits as its factorization.

72367231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 31.

The square root of 72367231 is about 8506.8931461492. The cubic root of 72367231 is about 416.7228537207.

The spelling of 72367231 in words is "seventy-two million, three hundred sixty-seven thousand, two hundred thirty-one".