545122011 has 64 divisors (see below), whose sum is σ = 914227200. Its totient is φ = 287955360.

The previous prime is 545122007. The next prime is 545122021. The reversal of 545122011 is 110221545.

It is not a de Polignac number, because 545122011 - 2² = 545122007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (545122001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 733306 + ... + 734048.

It is an arithmetic number, because the mean of its divisors is an integer number (14284800).

Almost surely, 2^545122011 is an apocalyptic number.

545122011 is a deficient number, since it is larger than the sum of its proper divisors (369105189).

545122011 is a wasteful number, since it uses less digits than its factorization.

545122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 807 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 545122011 is about 23347.8481021271. The cubic root of 545122011 is about 816.8918680522.

Adding to 545122011 its reverse (110221545), we get a palindrome (655343556).

The spelling of 545122011 in words is "five hundred forty-five million, one hundred twenty-two thousand, eleven".