99542719 has 2 divisors, whose sum is σ = 99542720. Its totient is φ = 99542718.

The previous prime is 99542713. The next prime is 99542741. The reversal of 99542719 is 91724599.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (91724599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99542719 - 2⁷ = 99542591 is a prime.

It is a super-2 number, since 2×99542719² = 19817505811825922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99542713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49771359 + 49771360.

It is an arithmetic number, because the mean of its divisors is an integer number (49771360).

Almost surely, 2^99542719 is an apocalyptic number.

99542719 is a deficient number, since it is larger than the sum of its proper divisors (1).

99542719 is an equidigital number, since it uses as much as digits as its factorization.

99542719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 46.

The square root of 99542719 is about 9977.1097518269. The cubic root of 99542719 is about 463.4502987258.

The spelling of 99542719 in words is "ninety-nine million, five hundred forty-two thousand, seven hundred nineteen".