42101543 has 8 divisors (see below), whose sum is σ = 46016256. Its totient is φ = 38201400.

The previous prime is 42101531. The next prime is 42101551. The reversal of 42101543 is 34510124.

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

It is a cyclic number.

It is not a de Polignac number, because 42101543 - 2⁸ = 42101287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42101513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2930 + ... + 9632.

It is an arithmetic number, because the mean of its divisors is an integer number (5752032).

Almost surely, 2^42101543 is an apocalyptic number.

42101543 is a deficient number, since it is larger than the sum of its proper divisors (3914713).

42101543 is a wasteful number, since it uses less digits than its factorization.

42101543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7285.

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

The square root of 42101543 is about 6488.5701814807. The cubic root of 42101543 is about 347.8825709178.

Adding to 42101543 its reverse (34510124), we get a palindrome (76611667).

The spelling of 42101543 in words is "forty-two million, one hundred one thousand, five hundred forty-three".