2220537145 has 8 divisors (see below), whose sum is σ = 2665266120. Its totient is φ = 1776015360.

The previous prime is 2220537119. The next prime is 2220537149. The reversal of 2220537145 is 5417350222.

It can be written as a sum of positive squares in 4 ways, for example, as 740057616 + 1480479529 = 27204^2 + 38477^2 .

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

It is not a de Polignac number, because 2220537145 - 2⁵ = 2220537113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2220537149) 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, 27150 + ... + 71959.

It is an arithmetic number, because the mean of its divisors is an integer number (333158265).

Almost surely, 2^2220537145 is an apocalyptic number.

It is an amenable number.

2220537145 is a deficient number, since it is larger than the sum of its proper divisors (444728975).

2220537145 is an equidigital number, since it uses as much as digits as its factorization.

2220537145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103595.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 2220537145 is about 47122.5757466631. The cubic root of 2220537145 is about 1304.6259542684.

Adding to 2220537145 its reverse (5417350222), we get a palindrome (7637887367).

The spelling of 2220537145 in words is "two billion, two hundred twenty million, five hundred thirty-seven thousand, one hundred forty-five".