545250142 has 4 divisors (see below), whose sum is σ = 817875216. Its totient is φ = 272625070.

The previous prime is 545250137. The next prime is 545250143. The reversal of 545250142 is 241052545.

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

It is a self number, because there is not a number n which added to its sum of digits gives 545250142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545250143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136312534 + ... + 136312537.

It is an arithmetic number, because the mean of its divisors is an integer number (204468804).

Almost surely, 2^545250142 is an apocalyptic number.

545250142 is a deficient number, since it is larger than the sum of its proper divisors (272625074).

545250142 is a wasteful number, since it uses less digits than its factorization.

545250142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272625073.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 545250142 is about 23350.5918982796. The cubic root of 545250142 is about 816.9558665517.

The spelling of 545250142 in words is "five hundred forty-five million, two hundred fifty thousand, one hundred forty-two".