545138697 has 16 divisors (see below), whose sum is σ = 732943040. Its totient is φ = 360389952.

The previous prime is 545138687. The next prime is 545138707. The reversal of 545138697 is 796831545.

It is an interprime number because it is at equal distance from previous prime (545138687) and next prime (545138707).

It is not a de Polignac number, because 545138697 - 2⁴ = 545138681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545138647) 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 15 ways as a sum of consecutive naturals, for example, 344454 + ... + 346032.

It is an arithmetic number, because the mean of its divisors is an integer number (45808940).

Almost surely, 2^545138697 is an apocalyptic number.

It is an amenable number.

545138697 is a deficient number, since it is larger than the sum of its proper divisors (187804343).

545138697 is a wasteful number, since it uses less digits than its factorization.

545138697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472.

The product of its digits is 907200, while the sum is 48.

The square root of 545138697 is about 23348.2054342513. The cubic root of 545138697 is about 816.9002028949.

The spelling of 545138697 in words is "five hundred forty-five million, one hundred thirty-eight thousand, six hundred ninety-seven".