45021353554145 has 4 divisors (see below), whose sum is σ = 54025624264980. Its totient is φ = 36017082843312.

The previous prime is 45021353554087. The next prime is 45021353554147. The reversal of 45021353554145 is 54145535312054.

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

It can be written as a sum of positive squares in 2 ways, for example, as 30412324179169 + 14609029374976 = 5514737^2 + 3822176^2 .

It is a cyclic number.

It is not a de Polignac number, because 45021353554145 - 2¹⁸ = 45021353292001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45021353554145.

It is not an unprimeable number, because it can be changed into a prime (45021353554147) 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, 4502135355410 + ... + 4502135355419.

It is an arithmetic number, because the mean of its divisors is an integer number (13506406066245).

Almost surely, 2^{45021353554145} is an apocalyptic number.

It is an amenable number.

45021353554145 is a deficient number, since it is larger than the sum of its proper divisors (9004270710835).

45021353554145 is an equidigital number, since it uses as much as digits as its factorization.

45021353554145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9004270710834.

The product of its (nonzero) digits is 3600000, while the sum is 47.

Adding to 45021353554145 its reverse (54145535312054), we get a palindrome (99166888866199).

The spelling of 45021353554145 in words is "forty-five trillion, twenty-one billion, three hundred fifty-three million, five hundred fifty-four thousand, one hundred forty-five".