545015331 has 32 divisors (see below), whose sum is σ = 924410880. Its totient is φ = 310886208.

The previous prime is 545015327. The next prime is 545015347. The reversal of 545015331 is 133510545.

It is not a de Polignac number, because 545015331 - 2² = 545015327 is a prime.

It is a super-2 number, since 2×545015331² = 594083422050079122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 545015295 and 545015304.

It is not an unprimeable number, because it can be changed into a prime (545015351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120055 + ... + 124511.

It is an arithmetic number, because the mean of its divisors is an integer number (28887840).

Almost surely, 2^545015331 is an apocalyptic number.

545015331 is a deficient number, since it is larger than the sum of its proper divisors (379395549).

545015331 is a wasteful number, since it uses less digits than its factorization.

545015331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5120 (or 5114 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 545015331 is about 23345.5634114921. The cubic root of 545015331 is about 816.8385761847.

Adding to 545015331 its reverse (133510545), we get a palindrome (678525876).

The spelling of 545015331 in words is "five hundred forty-five million, fifteen thousand, three hundred thirty-one".