545061838 has 4 divisors (see below), whose sum is σ = 817592760. Its totient is φ = 272530918.

The previous prime is 545061827. The next prime is 545061893. The reversal of 545061838 is 838160545.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 545061838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136265458 + ... + 136265461.

It is an arithmetic number, because the mean of its divisors is an integer number (204398190).

Almost surely, 2^545061838 is an apocalyptic number.

545061838 is a deficient number, since it is larger than the sum of its proper divisors (272530922).

545061838 is a wasteful number, since it uses less digits than its factorization.

545061838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272530921.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 545061838 is about 23346.5594467365. The cubic root of 545061838 is about 816.8618095563.

The spelling of 545061838 in words is "five hundred forty-five million, sixty-one thousand, eight hundred thirty-eight".