97194185437 has 2 divisors, whose sum is σ = 97194185438. Its totient is φ = 97194185436.

The previous prime is 97194185383. The next prime is 97194185441. The reversal of 97194185437 is 73458149179.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52191230116 + 45002955321 = 228454^2 + 212139^2 .

It is a cyclic number.

It is not a de Polignac number, because 97194185437 - 2³⁵ = 62834447069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97194185447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48597092718 + 48597092719.

It is an arithmetic number, because the mean of its divisors is an integer number (48597092719).

Almost surely, 2^97194185437 is an apocalyptic number.

It is an amenable number.

97194185437 is a deficient number, since it is larger than the sum of its proper divisors (1).

97194185437 is an equidigital number, since it uses as much as digits as its factorization.

97194185437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 58.

The spelling of 97194185437 in words is "ninety-seven billion, one hundred ninety-four million, one hundred eighty-five thousand, four hundred thirty-seven".