99542 has 8 divisors (see below), whose sum is σ = 151632. Its totient is φ = 49000.

The previous prime is 99529. The next prime is 99551. The reversal of 99542 is 24599.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a nialpdrome in base 10.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 99542.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209 + ... + 492.

It is an arithmetic number, because the mean of its divisors is an integer number (18954).

2⁹⁹⁵⁴² is an apocalyptic number.

99542 is a deficient number, since it is larger than the sum of its proper divisors (52090).

99542 is a wasteful number, since it uses less digits than its factorization.

99542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774.

The product of its digits is 3240, while the sum is 29.

The square root of 99542 is about 315.5027733634. The cubic root of 99542 is about 46.3449182885.

The spelling of 99542 in words is "ninety-nine thousand, five hundred forty-two".