545332142 has 4 divisors (see below), whose sum is σ = 817998216. Its totient is φ = 272666070.

The previous prime is 545332111. The next prime is 545332147. The reversal of 545332142 is 241233545.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545332147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136333034 + ... + 136333037.

It is an arithmetic number, because the mean of its divisors is an integer number (204499554).

Almost surely, 2^545332142 is an apocalyptic number.

545332142 is a deficient number, since it is larger than the sum of its proper divisors (272666074).

545332142 is a wasteful number, since it uses less digits than its factorization.

545332142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272666073.

The product of its digits is 14400, while the sum is 29.

The square root of 545332142 is about 23352.3476764115. The cubic root of 545332142 is about 816.9968184121.

Adding to 545332142 its reverse (241233545), we get a palindrome (786565687).

The spelling of 545332142 in words is "five hundred forty-five million, three hundred thirty-two thousand, one hundred forty-two".