545420188 has 6 divisors (see below), whose sum is σ = 954485336. Its totient is φ = 272710092.

The previous prime is 545420179. The next prime is 545420189. The reversal of 545420188 is 881024545.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545420189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68177520 + ... + 68177527.

Almost surely, 2^545420188 is an apocalyptic number.

It is an amenable number.

545420188 is a deficient number, since it is larger than the sum of its proper divisors (409065148).

545420188 is a wasteful number, since it uses less digits than its factorization.

545420188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136355051 (or 136355049 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 37.

The square root of 545420188 is about 23354.2327641051. The cubic root of 545420188 is about 817.0407851529.

The spelling of 545420188 in words is "five hundred forty-five million, four hundred twenty thousand, one hundred eighty-eight".