101043542 has 16 divisors (see below), whose sum is σ = 153552672. Its totient is φ = 49862400.

The previous prime is 101043533. The next prime is 101043587. The reversal of 101043542 is 245340101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135623 + ... + 136365.

It is an arithmetic number, because the mean of its divisors is an integer number (9597042).

Almost surely, 2^101043542 is an apocalyptic number.

101043542 is a deficient number, since it is larger than the sum of its proper divisors (52509130).

101043542 is an equidigital number, since it uses as much as digits as its factorization.

101043542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 101043542 is about 10052.0416831607. The cubic root of 101043542 is about 465.7678637756.

Adding to 101043542 its reverse (245340101), we get a palindrome (346383643).

The spelling of 101043542 in words is "one hundred one million, forty-three thousand, five hundred forty-two".