72263123 has 2 divisors, whose sum is σ = 72263124. Its totient is φ = 72263122.

The previous prime is 72263119. The next prime is 72263129. The reversal of 72263123 is 32136227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72263123 - 2² = 72263119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72263092 and 72263101.

It is not a weakly prime, because it can be changed into another prime (72263129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36131561 + 36131562.

It is an arithmetic number, because the mean of its divisors is an integer number (36131562).

Almost surely, 2^72263123 is an apocalyptic number.

72263123 is a deficient number, since it is larger than the sum of its proper divisors (1).

72263123 is an equidigital number, since it uses as much as digits as its factorization.

72263123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 26.

The square root of 72263123 is about 8500.7719061271. The cubic root of 72263123 is about 416.5229243550.

The spelling of 72263123 in words is "seventy-two million, two hundred sixty-three thousand, one hundred twenty-three".