99102661 has 4 divisors (see below), whose sum is σ = 113260192. Its totient is φ = 84945132.

The previous prime is 99102611. The next prime is 99102677. The reversal of 99102661 is 16620199.

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: 16620199 = 1487 ⋅11177.

It is a cyclic number.

It is not a de Polignac number, because 99102661 - 2⁹ = 99102149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99102611) 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, 7078755 + ... + 7078768.

It is an arithmetic number, because the mean of its divisors is an integer number (28315048).

Almost surely, 2^99102661 is an apocalyptic number.

It is an amenable number.

99102661 is a deficient number, since it is larger than the sum of its proper divisors (14157531).

99102661 is a wasteful number, since it uses less digits than its factorization.

99102661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14157530.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 99102661 is about 9955.0319436956. The cubic root of 99102661 is about 462.7663502095.

The spelling of 99102661 in words is "ninety-nine million, one hundred two thousand, six hundred sixty-one".