545469137 has 4 divisors (see below), whose sum is σ = 554411316. Its totient is φ = 536526960.

The previous prime is 545469131. The next prime is 545469139. The reversal of 545469137 is 731964545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 292786321 + 252682816 = 17111^2 + 15896^2 .

It is a cyclic number.

It is not a de Polignac number, because 545469137 - 2⁸ = 545468881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545469131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4470998 + ... + 4471119.

It is an arithmetic number, because the mean of its divisors is an integer number (138602829).

Almost surely, 2^545469137 is an apocalyptic number.

It is an amenable number.

545469137 is a deficient number, since it is larger than the sum of its proper divisors (8942179).

545469137 is an equidigital number, since it uses as much as digits as its factorization.

545469137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8942178.

The product of its digits is 453600, while the sum is 44.

The square root of 545469137 is about 23355.2807090816. The cubic root of 545469137 is about 817.0652263293.

The spelling of 545469137 in words is "five hundred forty-five million, four hundred sixty-nine thousand, one hundred thirty-seven".