75165131 has 2 divisors, whose sum is σ = 75165132. Its totient is φ = 75165130.

The previous prime is 75165119. The next prime is 75165133. The reversal of 75165131 is 13156157.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75165131 - 2⁶ = 75165067 is a prime.

It is a super-2 number, since 2×75165131² = 11299593836494322, which contains 22 as substring.

Together with 75165133, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 75165094 and 75165103.

It is not a weakly prime, because it can be changed into another prime (75165133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37582565 + 37582566.

It is an arithmetic number, because the mean of its divisors is an integer number (37582566).

Almost surely, 2^75165131 is an apocalyptic number.

75165131 is a deficient number, since it is larger than the sum of its proper divisors (1).

75165131 is an equidigital number, since it uses as much as digits as its factorization.

75165131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3150, while the sum is 29.

The square root of 75165131 is about 8669.7826385671. The cubic root of 75165131 is about 422.0256099550.

The spelling of 75165131 in words is "seventy-five million, one hundred sixty-five thousand, one hundred thirty-one".