1545203043242 has 8 divisors (see below), whose sum is σ = 2371706996736. Its totient is φ = 754634044332.

The previous prime is 1545203043233. The next prime is 1545203043289. The reversal of 1545203043242 is 2423403025451.

It is a happy number.

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

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, 8983738538 + ... + 8983738709.

It is an arithmetic number, because the mean of its divisors is an integer number (296463374592).

Almost surely, 2^{1545203043242} is an apocalyptic number.

1545203043242 is a deficient number, since it is larger than the sum of its proper divisors (826503953494).

1545203043242 is a wasteful number, since it uses less digits than its factorization.

1545203043242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17967477292.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 1545203043242 its reverse (2423403025451), we get a palindrome (3968606068693).

The spelling of 1545203043242 in words is "one trillion, five hundred forty-five billion, two hundred three million, forty-three thousand, two hundred forty-two".