98565121 has 4 divisors (see below), whose sum is σ = 98586544. Its totient is φ = 98543700.

The previous prime is 98565109. The next prime is 98565149. The reversal of 98565121 is 12156589.

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.

It is a cyclic number.

It is not a de Polignac number, because 98565121 - 2¹³ = 98556929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98565101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675 + ... + 14056.

It is an arithmetic number, because the mean of its divisors is an integer number (24646636).

Almost surely, 2^98565121 is an apocalyptic number.

It is an amenable number.

98565121 is a deficient number, since it is larger than the sum of its proper divisors (21423).

98565121 is a wasteful number, since it uses less digits than its factorization.

98565121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21422.

The product of its digits is 21600, while the sum is 37.

The square root of 98565121 is about 9927.9968271550. The cubic root of 98565121 is about 461.9281401574.

The spelling of 98565121 in words is "ninety-eight million, five hundred sixty-five thousand, one hundred twenty-one".