204111542 has 4 divisors (see below), whose sum is σ = 306167316. Its totient is φ = 102055770.

The previous prime is 204111539. The next prime is 204111559. The reversal of 204111542 is 245111402.

It is a happy number.

204111542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 245111402 = 2 ⋅122555701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51027884 + ... + 51027887.

It is an arithmetic number, because the mean of its divisors is an integer number (76541829).

Almost surely, 2^204111542 is an apocalyptic number.

204111542 is a deficient number, since it is larger than the sum of its proper divisors (102055774).

204111542 is a wasteful number, since it uses less digits than its factorization.

204111542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102055773.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 204111542 is about 14286.7610745053. The cubic root of 204111542 is about 588.7838032469.

Adding to 204111542 its reverse (245111402), we get a palindrome (449222944).

The spelling of 204111542 in words is "two hundred four million, one hundred eleven thousand, five hundred forty-two".