72310619 has 2 divisors, whose sum is σ = 72310620. Its totient is φ = 72310618.

The previous prime is 72310607. The next prime is 72310627. The reversal of 72310619 is 91601327.

It is a strong prime.

It is an emirp because it is prime and its reverse (91601327) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72310619 is a prime.

It is a super-2 number, since 2×72310619² = 10457651240326322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72310591 and 72310600.

It is not a weakly prime, because it can be changed into another prime (72310669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36155309 + 36155310.

It is an arithmetic number, because the mean of its divisors is an integer number (36155310).

Almost surely, 2^72310619 is an apocalyptic number.

72310619 is a deficient number, since it is larger than the sum of its proper divisors (1).

72310619 is an equidigital number, since it uses as much as digits as its factorization.

72310619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 72310619 is about 8503.5650758961. The cubic root of 72310619 is about 416.6141596413.

The spelling of 72310619 in words is "seventy-two million, three hundred ten thousand, six hundred nineteen".