541997188 has 6 divisors (see below), whose sum is σ = 948495086. Its totient is φ = 270998592.

The previous prime is 541997161. The next prime is 541997207. The reversal of 541997188 is 881799145.

It can be written as a sum of positive squares in only one way, i.e., 512207424 + 29789764 = 22632^2 + 5458^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67749645 + ... + 67749652.

Almost surely, 2^541997188 is an apocalyptic number.

It is an amenable number.

541997188 is a deficient number, since it is larger than the sum of its proper divisors (406497898).

541997188 is a wasteful number, since it uses less digits than its factorization.

541997188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135499301 (or 135499299 counting only the distinct ones).

The product of its digits is 725760, while the sum is 52.

The square root of 541997188 is about 23280.8330606961. The cubic root of 541997188 is about 815.3279761928.

The spelling of 541997188 in words is "five hundred forty-one million, nine hundred ninety-seven thousand, one hundred eighty-eight".