75126691 has 2 divisors, whose sum is σ = 75126692. Its totient is φ = 75126690.

The previous prime is 75126673. The next prime is 75126713. The reversal of 75126691 is 19662157.

It is a weak prime.

It is an emirp because it is prime and its reverse (19662157) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75126691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75126691.

It is not a weakly prime, because it can be changed into another prime (75156691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37563345 + 37563346.

It is an arithmetic number, because the mean of its divisors is an integer number (37563346).

Almost surely, 2^75126691 is an apocalyptic number.

75126691 is a deficient number, since it is larger than the sum of its proper divisors (1).

75126691 is an equidigital number, since it uses as much as digits as its factorization.

75126691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 37.

The square root of 75126691 is about 8667.5654598047. The cubic root of 75126691 is about 421.9536553554.

The spelling of 75126691 in words is "seventy-five million, one hundred twenty-six thousand, six hundred ninety-one".