545443155 has 24 divisors (see below), whose sum is σ = 946005840. Its totient is φ = 290727360.

The previous prime is 545443139. The next prime is 545443177. The reversal of 545443155 is 551344545.

It is not a de Polignac number, because 545443155 - 2⁴ = 545443139 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111501 + ... + 116289.

It is an arithmetic number, because the mean of its divisors is an integer number (39416910).

Almost surely, 2^545443155 is an apocalyptic number.

545443155 is a deficient number, since it is larger than the sum of its proper divisors (400562685).

545443155 is a wasteful number, since it uses less digits than its factorization.

545443155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7331 (or 7328 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 545443155 is about 23354.7244685096. The cubic root of 545443155 is about 817.0522531995.

The spelling of 545443155 in words is "five hundred forty-five million, four hundred forty-three thousand, one hundred fifty-five".