545135261 has 8 divisors (see below), whose sum is σ = 598256064. Its totient is φ = 492608320.

The previous prime is 545135237. The next prime is 545135267. The reversal of 545135261 is 162531545.

545135261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 545135261 - 2⁶ = 545135197 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 (545135267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146540 + ... + 150213.

It is an arithmetic number, because the mean of its divisors is an integer number (74782008).

Almost surely, 2^545135261 is an apocalyptic number.

It is an amenable number.

545135261 is a deficient number, since it is larger than the sum of its proper divisors (53120803).

545135261 is a wasteful number, since it uses less digits than its factorization.

545135261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296931.

The product of its digits is 18000, while the sum is 32.

The square root of 545135261 is about 23348.1318524631. The cubic root of 545135261 is about 816.8984865886.

It can be divided in two parts, 54 and 5135261, that added together give a palindrome (5135315).

The spelling of 545135261 in words is "five hundred forty-five million, one hundred thirty-five thousand, two hundred sixty-one".