2219742541 has 4 divisors (see below), whose sum is σ = 2219908032. Its totient is φ = 2219577052.

The previous prime is 2219742533. The next prime is 2219742559. The reversal of 2219742541 is 1452479122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2219742541 - 2³ = 2219742533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2219742541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219742341) 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, 60661 + ... + 90106.

It is an arithmetic number, because the mean of its divisors is an integer number (554977008).

Almost surely, 2^2219742541 is an apocalyptic number.

It is an amenable number.

2219742541 is a deficient number, since it is larger than the sum of its proper divisors (165491).

2219742541 is a wasteful number, since it uses less digits than its factorization.

2219742541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165490.

The product of its digits is 40320, while the sum is 37.

The square root of 2219742541 is about 47114.1437468623. The cubic root of 2219742541 is about 1304.4703185502.

The spelling of 2219742541 in words is "two billion, two hundred nineteen million, seven hundred forty-two thousand, five hundred forty-one".