545010991 has 32 divisors (see below), whose sum is σ = 679795200. Its totient is φ = 426539520.

The previous prime is 545010989. The next prime is 545011043. The reversal of 545010991 is 199010545.

It is a happy number.

545010991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 545010991 - 2¹ = 545010989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545010901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 484756 + ... + 485878.

It is an arithmetic number, because the mean of its divisors is an integer number (21243600).

Almost surely, 2^545010991 is an apocalyptic number.

545010991 is a deficient number, since it is larger than the sum of its proper divisors (134784209).

545010991 is a wasteful number, since it uses less digits than its factorization.

545010991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279.

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 545010991 is about 23345.4704600271. The cubic root of 545010991 is about 816.8364079957.

The spelling of 545010991 in words is "five hundred forty-five million, ten thousand, nine hundred ninety-one".