868554541 has 2 divisors, whose sum is σ = 868554542. Its totient is φ = 868554540.

The previous prime is 868554527. The next prime is 868554551. The reversal of 868554541 is 145455868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 863125641 + 5428900 = 29379^2 + 2330^2 .

It is a cyclic number.

It is not a de Polignac number, because 868554541 - 2⁵ = 868554509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 868554491 and 868554500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868554521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434277270 + 434277271.

It is an arithmetic number, because the mean of its divisors is an integer number (434277271).

Almost surely, 2^868554541 is an apocalyptic number.

It is an amenable number.

868554541 is a deficient number, since it is larger than the sum of its proper divisors (1).

868554541 is an equidigital number, since it uses as much as digits as its factorization.

868554541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768000, while the sum is 46.

The square root of 868554541 is about 29471.2493966578. The cubic root of 868554541 is about 954.1112830877. Note that the first 3 decimals are identical.

The spelling of 868554541 in words is "eight hundred sixty-eight million, five hundred fifty-four thousand, five hundred forty-one".