97229191 has 2 divisors, whose sum is σ = 97229192. Its totient is φ = 97229190.

The previous prime is 97229183. The next prime is 97229203. The reversal of 97229191 is 19192279.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97229191 - 2³ = 97229183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97229161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48614595 + 48614596.

It is an arithmetic number, because the mean of its divisors is an integer number (48614596).

Almost surely, 2^97229191 is an apocalyptic number.

97229191 is a deficient number, since it is larger than the sum of its proper divisors (1).

97229191 is an equidigital number, since it uses as much as digits as its factorization.

97229191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 40.

The square root of 97229191 is about 9860.4863470318. The cubic root of 97229191 is about 459.8316822750.

The spelling of 97229191 in words is "ninety-seven million, two hundred twenty-nine thousand, one hundred ninety-one".