91498201 has 2 divisors, whose sum is σ = 91498202. Its totient is φ = 91498200.

The previous prime is 91498189. The next prime is 91498207. The reversal of 91498201 is 10289419.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66846976 + 24651225 = 8176^2 + 4965^2 .

It is a cyclic number.

It is not a de Polignac number, because 91498201 - 2⁷ = 91498073 is a prime.

It is equal to p_5298901 and since 91498201 and 5298901 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (91498207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45749100 + 45749101.

It is an arithmetic number, because the mean of its divisors is an integer number (45749101).

Almost surely, 2^91498201 is an apocalyptic number.

It is an amenable number.

91498201 is a deficient number, since it is larger than the sum of its proper divisors (1).

91498201 is an equidigital number, since it uses as much as digits as its factorization.

91498201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 91498201 is about 9565.4691991559. The cubic root of 91498201 is about 450.6134858872.

The spelling of 91498201 in words is "ninety-one million, four hundred ninety-eight thousand, two hundred one".