545142345 has 16 divisors (see below), whose sum is σ = 951521472. Its totient is φ = 264311360.

The previous prime is 545142341. The next prime is 545142401. The reversal of 545142345 is 543241545.

It is not a de Polignac number, because 545142345 - 2² = 545142341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (545142341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1651782 + ... + 1652111.

It is an arithmetic number, because the mean of its divisors is an integer number (59470092).

Almost surely, 2^545142345 is an apocalyptic number.

545142345 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

545142345 is a deficient number, since it is larger than the sum of its proper divisors (406379127).

545142345 is a wasteful number, since it uses less digits than its factorization.

545142345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3303912.

The product of its digits is 48000, while the sum is 33.

The square root of 545142345 is about 23348.2835557563. The cubic root of 545142345 is about 816.9020250888.

The spelling of 545142345 in words is "five hundred forty-five million, one hundred forty-two thousand, three hundred forty-five".