75831361 has 2 divisors, whose sum is σ = 75831362. Its totient is φ = 75831360.

The previous prime is 75831359. The next prime is 75831383. The reversal of 75831361 is 16313857.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55219761 + 20611600 = 7431^2 + 4540^2 .

It is a cyclic number.

It is not a de Polignac number, because 75831361 - 2¹ = 75831359 is a prime.

It is a super-2 number, since 2×75831361² = 11500790622224642, which contains 22 as substring.

Together with 75831359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (75831341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37915680 + 37915681.

It is an arithmetic number, because the mean of its divisors is an integer number (37915681).

Almost surely, 2^75831361 is an apocalyptic number.

It is an amenable number.

75831361 is a deficient number, since it is larger than the sum of its proper divisors (1).

75831361 is an equidigital number, since it uses as much as digits as its factorization.

75831361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 75831361 is about 8708.1204056903. The cubic root of 75831361 is about 423.2688259463.

The spelling of 75831361 in words is "seventy-five million, eight hundred thirty-one thousand, three hundred sixty-one".