99142801 has 2 divisors, whose sum is σ = 99142802. Its totient is φ = 99142800.

The previous prime is 99142789. The next prime is 99142837. The reversal of 99142801 is 10824199.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82373776 + 16769025 = 9076^2 + 4095^2 .

It is a cyclic number.

It is not a de Polignac number, because 99142801 - 2⁹ = 99142289 is a prime.

It is not a weakly prime, because it can be changed into another prime (99142871) 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 as a sum of consecutive naturals, namely, 49571400 + 49571401.

It is an arithmetic number, because the mean of its divisors is an integer number (49571401).

Almost surely, 2^99142801 is an apocalyptic number.

It is an amenable number.

99142801 is a deficient number, since it is larger than the sum of its proper divisors (1).

99142801 is an equidigital number, since it uses as much as digits as its factorization.

99142801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 99142801 is about 9957.0478054492. The cubic root of 99142801 is about 462.8288205602.

The spelling of 99142801 in words is "ninety-nine million, one hundred forty-two thousand, eight hundred one".