75122197 has 2 divisors, whose sum is σ = 75122198. Its totient is φ = 75122196.

The previous prime is 75122153. The next prime is 75122231. The reversal of 75122197 is 79122157.

It is an a-pointer prime, because the next prime (75122231) can be obtained adding 75122197 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73942801 + 1179396 = 8599^2 + 1086^2 .

It is a cyclic number.

It is not a de Polignac number, because 75122197 - 2¹⁹ = 74597909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75122297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37561098 + 37561099.

It is an arithmetic number, because the mean of its divisors is an integer number (37561099).

Almost surely, 2^75122197 is an apocalyptic number.

It is an amenable number.

75122197 is a deficient number, since it is larger than the sum of its proper divisors (1).

75122197 is an equidigital number, since it uses as much as digits as its factorization.

75122197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8820, while the sum is 34.

The square root of 75122197 is about 8667.3062135822. The cubic root of 75122197 is about 421.9452415790.

The spelling of 75122197 in words is "seventy-five million, one hundred twenty-two thousand, one hundred ninety-seven".