72057941 has 2 divisors, whose sum is σ = 72057942. Its totient is φ = 72057940.

The previous prime is 72057929. The next prime is 72057961. The reversal of 72057941 is 14975027.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65141041 + 6916900 = 8071^2 + 2630^2 .

It is an emirp because it is prime and its reverse (14975027) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72057941 - 2¹⁰ = 72056917 is a prime.

It is a super-2 number, since 2×72057941² = 10384693722318962, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72057961) 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, 36028970 + 36028971.

It is an arithmetic number, because the mean of its divisors is an integer number (36028971).

Almost surely, 2^72057941 is an apocalyptic number.

It is an amenable number.

72057941 is a deficient number, since it is larger than the sum of its proper divisors (1).

72057941 is an equidigital number, since it uses as much as digits as its factorization.

72057941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 72057941 is about 8488.6948937985. The cubic root of 72057941 is about 416.1283292601.

The spelling of 72057941 in words is "seventy-two million, fifty-seven thousand, nine hundred forty-one".