72230941 has 2 divisors, whose sum is σ = 72230942. Its totient is φ = 72230940.

The previous prime is 72230923. The next prime is 72230947. The reversal of 72230941 is 14903227.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46526041 + 25704900 = 6821^2 + 5070^2 .

It is a cyclic number.

It is not a de Polignac number, because 72230941 - 2⁷ = 72230813 is a prime.

It is a super-3 number, since 3×72230941³ (a number of 25 digits) contains 333 as substring.

It is equal to p_4241575 and since 72230941 and 4241575 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72230947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36115470 + 36115471.

It is an arithmetic number, because the mean of its divisors is an integer number (36115471).

Almost surely, 2^72230941 is an apocalyptic number.

It is an amenable number.

72230941 is a deficient number, since it is larger than the sum of its proper divisors (1).

72230941 is an equidigital number, since it uses as much as digits as its factorization.

72230941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 72230941 is about 8498.8788084076. The cubic root of 72230941 is about 416.4610830794.

The spelling of 72230941 in words is "seventy-two million, two hundred thirty thousand, nine hundred forty-one".