5545138 has 4 divisors (see below), whose sum is σ = 8317710. Its totient is φ = 2772568.

The previous prime is 5545123. The next prime is 5545193. The reversal of 5545138 is 8315455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8315455 = 5 ⋅1663091.

It can be written as a sum of positive squares in only one way, i.e., 5031049 + 514089 = 2243^2 + 717^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1386283 + ... + 1386286.

Almost surely, 2^5545138 is an apocalyptic number.

5545138 is a deficient number, since it is larger than the sum of its proper divisors (2772572).

5545138 is a wasteful number, since it uses less digits than its factorization.

5545138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772571.

The product of its digits is 12000, while the sum is 31.

The square root of 5545138 is about 2354.8116697520. The cubic root of 5545138 is about 176.9989892161.

The spelling of 5545138 in words is "five million, five hundred forty-five thousand, one hundred thirty-eight".