5287138 has 4 divisors (see below), whose sum is σ = 7930710. Its totient is φ = 2643568.

The previous prime is 5287097. The next prime is 5287141. The reversal of 5287138 is 8317825.

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

It can be written as a sum of positive squares in only one way, i.e., 3250809 + 2036329 = 1803^2 + 1427^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321783 + ... + 1321786.

Almost surely, 2^5287138 is an apocalyptic number.

5287138 is a deficient number, since it is larger than the sum of its proper divisors (2643572).

5287138 is a wasteful number, since it uses less digits than its factorization.

5287138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643571.

The product of its digits is 13440, while the sum is 34.

The square root of 5287138 is about 2299.3777419119. The cubic root of 5287138 is about 174.2101877102.

The spelling of 5287138 in words is "five million, two hundred eighty-seven thousand, one hundred thirty-eight".