2198067541 has 4 divisors (see below), whose sum is σ = 2205569772. Its totient is φ = 2190565312.

The previous prime is 2198067533. The next prime is 2198067563. The reversal of 2198067541 is 1457608912.

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 1117564900 + 1080502641 = 33430^2 + 32871^2 .

It is a cyclic number.

It is not a de Polignac number, because 2198067541 - 2³ = 2198067533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198067511) 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, 3750676 + ... + 3751261.

It is an arithmetic number, because the mean of its divisors is an integer number (551392443).

Almost surely, 2^2198067541 is an apocalyptic number.

It is an amenable number.

2198067541 is a deficient number, since it is larger than the sum of its proper divisors (7502231).

2198067541 is an equidigital number, since it uses as much as digits as its factorization.

2198067541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7502230.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 2198067541 is about 46883.5529903611. The cubic root of 2198067541 is about 1300.2105262599.

The spelling of 2198067541 in words is "two billion, one hundred ninety-eight million, sixty-seven thousand, five hundred forty-one".