2043521542 has 8 divisors (see below), whose sum is σ = 3065824800. Its totient is φ = 1021579944.

The previous prime is 2043521539. The next prime is 2043521563. The reversal of 2043521542 is 2451253402.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2043521542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75817 + ... + 99172.

It is an arithmetic number, because the mean of its divisors is an integer number (383228100).

Almost surely, 2^2043521542 is an apocalyptic number.

2043521542 is a deficient number, since it is larger than the sum of its proper divisors (1022303258).

2043521542 is a wasteful number, since it uses less digits than its factorization.

2043521542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180830.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2043521542 is about 45205.3264781928. The cubic root of 2043521542 is about 1268.9945007951.

Adding to 2043521542 its reverse (2451253402), we get a palindrome (4494774944).

The spelling of 2043521542 in words is "two billion, forty-three million, five hundred twenty-one thousand, five hundred forty-two".