2220545137 has 4 divisors (see below), whose sum is σ = 2220673140. Its totient is φ = 2220417136.

The previous prime is 2220545101. The next prime is 2220545141. The reversal of 2220545137 is 7315450222.

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 1221921936 + 998623201 = 34956^2 + 31601^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220545137 - 2¹¹ = 2220543089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220545099 and 2220545108.

It is not an unprimeable number, because it can be changed into a prime (2220545737) 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, 32962 + ... + 74347.

It is an arithmetic number, because the mean of its divisors is an integer number (555168285).

Almost surely, 2^2220545137 is an apocalyptic number.

It is an amenable number.

2220545137 is a deficient number, since it is larger than the sum of its proper divisors (128003).

2220545137 is a wasteful number, since it uses less digits than its factorization.

2220545137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128002.

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

The square root of 2220545137 is about 47122.6605467051. The cubic root of 2220545137 is about 1304.6275194390.

Adding to 2220545137 its reverse (7315450222), we get a palindrome (9535995359).

The spelling of 2220545137 in words is "two billion, two hundred twenty million, five hundred forty-five thousand, one hundred thirty-seven".