99542141 has 2 divisors, whose sum is σ = 99542142. Its totient is φ = 99542140.

The previous prime is 99542077. The next prime is 99542153. The reversal of 99542141 is 14124599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84254041 + 15288100 = 9179^2 + 3910^2 .

It is a cyclic number.

It is not a de Polignac number, because 99542141 - 2⁶ = 99542077 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99542161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49771070 + 49771071.

It is an arithmetic number, because the mean of its divisors is an integer number (49771071).

Almost surely, 2^99542141 is an apocalyptic number.

It is an amenable number.

99542141 is a deficient number, since it is larger than the sum of its proper divisors (1).

99542141 is an equidigital number, since it uses as much as digits as its factorization.

99542141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 35.

The square root of 99542141 is about 9977.0807854803. The cubic root of 99542141 is about 463.4494017079.

The spelling of 99542141 in words is "ninety-nine million, five hundred forty-two thousand, one hundred forty-one".