98181601 has 4 divisors (see below), whose sum is σ = 112207552. Its totient is φ = 84155652.

The previous prime is 98181553. The next prime is 98181631. The reversal of 98181601 is 10618189.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10618189 = 1877 ⋅5657.

It is not a de Polignac number, because 98181601 - 2¹¹ = 98179553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98181631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7012965 + ... + 7012978.

It is an arithmetic number, because the mean of its divisors is an integer number (28051888).

Almost surely, 2^98181601 is an apocalyptic number.

It is an amenable number.

98181601 is a deficient number, since it is larger than the sum of its proper divisors (14025951).

98181601 is a wasteful number, since it uses less digits than its factorization.

98181601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14025950.

The product of its (nonzero) digits is 3456, while the sum is 34.

The square root of 98181601 is about 9908.6629269544. The cubic root of 98181601 is about 461.3282357383.

The spelling of 98181601 in words is "ninety-eight million, one hundred eighty-one thousand, six hundred one".