99152681 has 2 divisors, whose sum is σ = 99152682. Its totient is φ = 99152680.

The previous prime is 99152671. The next prime is 99152699. The reversal of 99152681 is 18625199.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93296281 + 5856400 = 9659^2 + 2420^2 .

It is a cyclic number.

It is not a de Polignac number, because 99152681 - 2¹⁸ = 98890537 is a prime.

It is a super-2 number, since 2×99152681² = 19662508298975522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (99152671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49576340 + 49576341.

It is an arithmetic number, because the mean of its divisors is an integer number (49576341).

Almost surely, 2^99152681 is an apocalyptic number.

It is an amenable number.

99152681 is a deficient number, since it is larger than the sum of its proper divisors (1).

99152681 is an equidigital number, since it uses as much as digits as its factorization.

99152681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 41.

The square root of 99152681 is about 9957.5439240809. The cubic root of 99152681 is about 462.8441943335.

The spelling of 99152681 in words is "ninety-nine million, one hundred fifty-two thousand, six hundred eighty-one".