545131015 has 32 divisors (see below), whose sum is σ = 774994752. Its totient is φ = 365904000.

The previous prime is 545131007. The next prime is 545131043. The reversal of 545131015 is 510131545.

It is a happy number.

It is not a de Polignac number, because 545131015 - 2³ = 545131007 is a prime.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83365 + ... + 89665.

It is an arithmetic number, because the mean of its divisors is an integer number (24218586).

Almost surely, 2^545131015 is an apocalyptic number.

545131015 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

545131015 is a deficient number, since it is larger than the sum of its proper divisors (229863737).

545131015 is a wasteful number, since it uses less digits than its factorization.

545131015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6352 (or 6330 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 545131015 is about 23348.0409242403. The cubic root of 545131015 is about 816.8963656715.

The spelling of 545131015 in words is "five hundred forty-five million, one hundred thirty-one thousand, fifteen".