2240215541 has 2 divisors, whose sum is σ = 2240215542. Its totient is φ = 2240215540.

The previous prime is 2240215531. The next prime is 2240215543. The reversal of 2240215541 is 1455120422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1670438641 + 569776900 = 40871^2 + 23870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2240215541 is a prime.

It is a Sophie Germain prime.

Together with 2240215543, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2240215541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2240215543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120107770 + 1120107771.

It is an arithmetic number, because the mean of its divisors is an integer number (1120107771).

Almost surely, 2^2240215541 is an apocalyptic number.

It is an amenable number.

2240215541 is a deficient number, since it is larger than the sum of its proper divisors (1).

2240215541 is an equidigital number, since it uses as much as digits as its factorization.

2240215541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 2240215541 is about 47330.9152774379. The cubic root of 2240215541 is about 1308.4684899261.

Adding to 2240215541 its reverse (1455120422), we get a palindrome (3695335963).

The spelling of 2240215541 in words is "two billion, two hundred forty million, two hundred fifteen thousand, five hundred forty-one".