542121099 has 32 divisors (see below), whose sum is σ = 811641600. Its totient is φ = 319562880.

The previous prime is 542121067. The next prime is 542121101. The reversal of 542121099 is 990121245.

It is not a de Polignac number, because 542121099 - 2⁵ = 542121067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542126099) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146332 + ... + 149990.

It is an arithmetic number, because the mean of its divisors is an integer number (25363800).

Almost surely, 2^542121099 is an apocalyptic number.

542121099 is a deficient number, since it is larger than the sum of its proper divisors (269520501).

542121099 is a wasteful number, since it uses less digits than its factorization.

542121099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3835.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 542121099 is about 23283.4941321100. The cubic root of 542121099 is about 815.3901046866.

The spelling of 542121099 in words is "five hundred forty-two million, one hundred twenty-one thousand, ninety-nine".