98148158021 has 2 divisors, whose sum is σ = 98148158022. Its totient is φ = 98148158020.

The previous prime is 98148157997. The next prime is 98148158093. The reversal of 98148158021 is 12085184189.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58026064996 + 40122093025 = 240886^2 + 200305^2 .

It is a cyclic number.

It is not a de Polignac number, because 98148158021 - 2¹⁸ = 98147895877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98148158321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49074079010 + 49074079011.

It is an arithmetic number, because the mean of its divisors is an integer number (49074079011).

Almost surely, 2^98148158021 is an apocalyptic number.

It is an amenable number.

98148158021 is a deficient number, since it is larger than the sum of its proper divisors (1).

98148158021 is an equidigital number, since it uses as much as digits as its factorization.

98148158021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 184320, while the sum is 47.

The spelling of 98148158021 in words is "ninety-eight billion, one hundred forty-eight million, one hundred fifty-eight thousand, twenty-one".