98151791 has 2 divisors, whose sum is σ = 98151792. Its totient is φ = 98151790.

The previous prime is 98151737. The next prime is 98151799. The reversal of 98151791 is 19715189.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98151791 - 2¹⁸ = 97889647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98151799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49075895 + 49075896.

It is an arithmetic number, because the mean of its divisors is an integer number (49075896).

Almost surely, 2^98151791 is an apocalyptic number.

98151791 is a deficient number, since it is larger than the sum of its proper divisors (1).

98151791 is an equidigital number, since it uses as much as digits as its factorization.

98151791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 41.

The square root of 98151791 is about 9907.1585734760. The cubic root of 98151791 is about 461.2815413590.

The spelling of 98151791 in words is "ninety-eight million, one hundred fifty-one thousand, seven hundred ninety-one".