99671129 has 2 divisors, whose sum is σ = 99671130. Its totient is φ = 99671128.

The previous prime is 99671113. The next prime is 99671171. The reversal of 99671129 is 92117699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84640000 + 15031129 = 9200^2 + 3877^2 .

It is a cyclic number.

It is not a de Polignac number, because 99671129 - 2⁴ = 99671113 is a prime.

It is a super-2 number, since 2×99671129² = 19868667912269282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99671129.

It is not a weakly prime, because it can be changed into another prime (99671179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49835564 + 49835565.

It is an arithmetic number, because the mean of its divisors is an integer number (49835565).

Almost surely, 2^99671129 is an apocalyptic number.

It is an amenable number.

99671129 is a deficient number, since it is larger than the sum of its proper divisors (1).

99671129 is an equidigital number, since it uses as much as digits as its factorization.

99671129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 44.

The square root of 99671129 is about 9983.5429082065. The cubic root of 99671129 is about 463.6494965569.

The spelling of 99671129 in words is "ninety-nine million, six hundred seventy-one thousand, one hundred twenty-nine".