73041257 has 2 divisors, whose sum is σ = 73041258. Its totient is φ = 73041256.

The previous prime is 73041211. The next prime is 73041271. The reversal of 73041257 is 75214037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72914521 + 126736 = 8539^2 + 356^2 .

It is a cyclic number.

It is not a de Polignac number, because 73041257 - 2²⁶ = 5932393 is a prime.

It is not a weakly prime, because it can be changed into another prime (73047257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36520628 + 36520629.

It is an arithmetic number, because the mean of its divisors is an integer number (36520629).

Almost surely, 2^73041257 is an apocalyptic number.

It is an amenable number.

73041257 is a deficient number, since it is larger than the sum of its proper divisors (1).

73041257 is an equidigital number, since it uses as much as digits as its factorization.

73041257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 73041257 is about 8546.4177875880. The cubic root of 73041257 is about 418.0126385990.

The spelling of 73041257 in words is "seventy-three million, forty-one thousand, two hundred fifty-seven".