99162381 has 8 divisors (see below), whose sum is σ = 133182144. Its totient is φ = 65625440.

The previous prime is 99162379. The next prime is 99162383. The reversal of 99162381 is 18326199.

It is an interprime number because it is at equal distance from previous prime (99162379) and next prime (99162383).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99162381 - 2¹ = 99162379 is a prime.

It is a super-2 number, since 2×99162381² = 19666355611178322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99162383) 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 7 ways as a sum of consecutive naturals, for example, 120225 + ... + 121046.

It is an arithmetic number, because the mean of its divisors is an integer number (16647768).

Almost surely, 2^99162381 is an apocalyptic number.

It is an amenable number.

99162381 is a deficient number, since it is larger than the sum of its proper divisors (34019763).

99162381 is a wasteful number, since it uses less digits than its factorization.

99162381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241411.

The product of its digits is 23328, while the sum is 39.

The square root of 99162381 is about 9958.0309800683. The cubic root of 99162381 is about 462.8592870244.

The spelling of 99162381 in words is "ninety-nine million, one hundred sixty-two thousand, three hundred eighty-one".