545123011 has 2 divisors, whose sum is σ = 545123012. Its totient is φ = 545123010.

The previous prime is 545122999. The next prime is 545123017. The reversal of 545123011 is 110321545.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545123011 - 2⁵ = 545122979 is a prime.

It is a super-2 number, since 2×545123011² = 594318194243412242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (545123017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272561505 + 272561506.

It is an arithmetic number, because the mean of its divisors is an integer number (272561506).

Almost surely, 2^545123011 is an apocalyptic number.

545123011 is a deficient number, since it is larger than the sum of its proper divisors (1).

545123011 is an equidigital number, since it uses as much as digits as its factorization.

545123011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 545123011 is about 23347.8695173671. The cubic root of 545123011 is about 816.8923675681.

Adding to 545123011 its reverse (110321545), we get a palindrome (655444556).

The spelling of 545123011 in words is "five hundred forty-five million, one hundred twenty-three thousand, eleven".