200105542 has 32 divisors (see below), whose sum is σ = 370427904. Its totient is φ = 78948000.

The previous prime is 200105537. The next prime is 200105593. The reversal of 200105542 is 245501002.

It is a super-2 number, since 2×200105542² = 80084455878227528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77167 + ... + 79717.

It is an arithmetic number, because the mean of its divisors is an integer number (11575872).

Almost surely, 2^200105542 is an apocalyptic number.

200105542 is a deficient number, since it is larger than the sum of its proper divisors (170322362).

200105542 is a wasteful number, since it uses less digits than its factorization.

200105542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3004.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 200105542 is about 14145.8666047719. The cubic root of 200105542 is about 584.9063984463.

Adding to 200105542 its reverse (245501002), we get a palindrome (445606544).

It can be divided in two parts, 20010 and 5542, that added together give a palindrome (25552).

The spelling of 200105542 in words is "two hundred million, one hundred five thousand, five hundred forty-two".