545138445 has 8 divisors (see below), whose sum is σ = 872221536. Its totient is φ = 290740496.

The previous prime is 545138423. The next prime is 545138459. The reversal of 545138445 is 544831545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 545138445 - 2⁸ = 545138189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18171267 + ... + 18171296.

It is an arithmetic number, because the mean of its divisors is an integer number (109027692).

Almost surely, 2^545138445 is an apocalyptic number.

It is an amenable number.

545138445 is a deficient number, since it is larger than the sum of its proper divisors (327083091).

545138445 is a wasteful number, since it uses less digits than its factorization.

545138445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36342571.

The product of its digits is 192000, while the sum is 39.

The square root of 545138445 is about 23348.2000376903. The cubic root of 545138445 is about 816.9000770194.

The spelling of 545138445 in words is "five hundred forty-five million, one hundred thirty-eight thousand, four hundred forty-five".