98501191 has 2 divisors, whose sum is σ = 98501192. Its totient is φ = 98501190.

The previous prime is 98501173. The next prime is 98501201. The reversal of 98501191 is 19110589.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98501191 - 2¹⁵ = 98468423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98501891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49250595 + 49250596.

It is an arithmetic number, because the mean of its divisors is an integer number (49250596).

Almost surely, 2^98501191 is an apocalyptic number.

98501191 is a deficient number, since it is larger than the sum of its proper divisors (1).

98501191 is an equidigital number, since it uses as much as digits as its factorization.

98501191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 34.

The square root of 98501191 is about 9924.7766221714. The cubic root of 98501191 is about 461.8282486587.

The spelling of 98501191 in words is "ninety-eight million, five hundred one thousand, one hundred ninety-one".