75043361 has 2 divisors, whose sum is σ = 75043362. Its totient is φ = 75043360.

The previous prime is 75043351. The next prime is 75043373. The reversal of 75043361 is 16334057.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64899136 + 10144225 = 8056^2 + 3185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75043361 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75043301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37521680 + 37521681.

It is an arithmetic number, because the mean of its divisors is an integer number (37521681).

Almost surely, 2^75043361 is an apocalyptic number.

It is an amenable number.

75043361 is a deficient number, since it is larger than the sum of its proper divisors (1).

75043361 is an equidigital number, since it uses as much as digits as its factorization.

75043361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 75043361 is about 8662.7571246111. The cubic root of 75043361 is about 421.7975882910.

The spelling of 75043361 in words is "seventy-five million, forty-three thousand, three hundred sixty-one".