45545151145243 has 4 divisors (see below), whose sum is σ = 45650336252248. Its totient is φ = 45439966038240.

The previous prime is 45545151145199. The next prime is 45545151145253. The reversal of 45545151145243 is 34254115154554.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45545151145243 - 2²⁵ = 45545117590811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45545151145253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52592552853 + ... + 52592553718.

It is an arithmetic number, because the mean of its divisors is an integer number (11412584063062).

Almost surely, 2^{45545151145243} is an apocalyptic number.

45545151145243 is a deficient number, since it is larger than the sum of its proper divisors (105185107005).

45545151145243 is a wasteful number, since it uses less digits than its factorization.

45545151145243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105185107004.

The product of its digits is 4800000, while the sum is 49.

Adding to 45545151145243 its reverse (34254115154554), we get a palindrome (79799266299797).

The spelling of 45545151145243 in words is "forty-five trillion, five hundred forty-five billion, one hundred fifty-one million, one hundred forty-five thousand, two hundred forty-three".