9691190501 has 2 divisors, whose sum is σ = 9691190502. Its totient is φ = 9691190500.

The previous prime is 9691190497. The next prime is 9691190567. The reversal of 9691190501 is 1050911969.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7043573476 + 2647617025 = 83926^2 + 51455^2 .

It is a cyclic number.

It is not a de Polignac number, because 9691190501 - 2² = 9691190497 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9691190401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4845595250 + 4845595251.

It is an arithmetic number, because the mean of its divisors is an integer number (4845595251).

Almost surely, 2^9691190501 is an apocalyptic number.

It is an amenable number.

9691190501 is a deficient number, since it is larger than the sum of its proper divisors (1).

9691190501 is an equidigital number, since it uses as much as digits as its factorization.

9691190501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21870, while the sum is 41.

The square root of 9691190501 is about 98443.8444038021. The cubic root of 9691190501 is about 2132.0254122879.

The spelling of 9691190501 in words is "nine billion, six hundred ninety-one million, one hundred ninety thousand, five hundred one".