546440155 has 4 divisors (see below), whose sum is σ = 655728192. Its totient is φ = 437152120.

The previous prime is 546440143. The next prime is 546440183. The reversal of 546440155 is 551044645.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 546440155 - 2²¹ = 544343003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 546440155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54644011 + ... + 54644020.

It is an arithmetic number, because the mean of its divisors is an integer number (163932048).

Almost surely, 2^546440155 is an apocalyptic number.

546440155 is a deficient number, since it is larger than the sum of its proper divisors (109288037).

546440155 is a wasteful number, since it uses less digits than its factorization.

546440155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109288036.

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 546440155 is about 23376.0594412317. The cubic root of 546440155 is about 817.5497723658.

The spelling of 546440155 in words is "five hundred forty-six million, four hundred forty thousand, one hundred fifty-five".