545688236 has 24 divisors (see below), whose sum is σ = 1032647616. Its totient is φ = 251329280.

The previous prime is 545688233. The next prime is 545688239. The reversal of 545688236 is 632886545.

It is an interprime number because it is at equal distance from previous prime (545688233) and next prime (545688239).

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (545688233) 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 7 ways as a sum of consecutive naturals, for example, 82175 + ... + 88566.

It is an arithmetic number, because the mean of its divisors is an integer number (43026984).

Almost surely, 2^545688236 is an apocalyptic number.

It is an amenable number.

545688236 is a deficient number, since it is larger than the sum of its proper divisors (486959380).

545688236 is a wasteful number, since it uses less digits than its factorization.

545688236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170809 (or 170807 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 47.

The square root of 545688236 is about 23359.9708047763. The cubic root of 545688236 is about 817.1746087541.

The spelling of 545688236 in words is "five hundred forty-five million, six hundred eighty-eight thousand, two hundred thirty-six".