97319149 has 2 divisors, whose sum is σ = 97319150. Its totient is φ = 97319148.

The previous prime is 97319113. The next prime is 97319177. The reversal of 97319149 is 94191379.

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., 92833225 + 4485924 = 9635^2 + 2118^2 .

It is a cyclic number.

It is not a de Polignac number, because 97319149 - 2⁷ = 97319021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97319249) 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, 48659574 + 48659575.

It is an arithmetic number, because the mean of its divisors is an integer number (48659575).

Almost surely, 2^97319149 is an apocalyptic number.

It is an amenable number.

97319149 is a deficient number, since it is larger than the sum of its proper divisors (1).

97319149 is an equidigital number, since it uses as much as digits as its factorization.

97319149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 43.

The square root of 97319149 is about 9865.0468321240. The cubic root of 97319149 is about 459.9734530994.

The spelling of 97319149 in words is "ninety-seven million, three hundred nineteen thousand, one hundred forty-nine".