99163931 has 2 divisors, whose sum is σ = 99163932. Its totient is φ = 99163930.

The previous prime is 99163919. The next prime is 99163943. The reversal of 99163931 is 13936199.

It is a balanced prime because it is at equal distance from previous prime (99163919) and next prime (99163943).

It is an emirp because it is prime and its reverse (13936199) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99163931 - 2¹⁴ = 99147547 is a prime.

It is a super-2 number, since 2×99163931² = 19666970422745522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99163991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49581965 + 49581966.

It is an arithmetic number, because the mean of its divisors is an integer number (49581966).

Almost surely, 2^99163931 is an apocalyptic number.

99163931 is a deficient number, since it is larger than the sum of its proper divisors (1).

99163931 is an equidigital number, since it uses as much as digits as its factorization.

99163931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39366, while the sum is 41.

The square root of 99163931 is about 9958.1088063949. The cubic root of 99163931 is about 462.8616986518.

The spelling of 99163931 in words is "ninety-nine million, one hundred sixty-three thousand, nine hundred thirty-one".