75706157 has 2 divisors, whose sum is σ = 75706158. Its totient is φ = 75706156.

The previous prime is 75706121. The next prime is 75706193. The reversal of 75706157 is 75160757.

It is a balanced prime because it is at equal distance from previous prime (75706121) and next prime (75706193).

It can be written as a sum of positive squares in only one way, i.e., 42367081 + 33339076 = 6509^2 + 5774^2 .

It is a cyclic number.

It is not a de Polignac number, because 75706157 - 2¹⁸ = 75444013 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75706157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75703157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37853078 + 37853079.

It is an arithmetic number, because the mean of its divisors is an integer number (37853079).

Almost surely, 2^75706157 is an apocalyptic number.

It is an amenable number.

75706157 is a deficient number, since it is larger than the sum of its proper divisors (1).

75706157 is an equidigital number, since it uses as much as digits as its factorization.

75706157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51450, while the sum is 38.

The square root of 75706157 is about 8700.9285136703. The cubic root of 75706157 is about 423.0357467271.

The spelling of 75706157 in words is "seventy-five million, seven hundred six thousand, one hundred fifty-seven".