1138517 has 4 divisors (see below), whose sum is σ = 1141440. Its totient is φ = 1135596.

The previous prime is 1138483. The next prime is 1138519. The reversal of 1138517 is 7158311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7158311 = 229 ⋅31259.

It is a cyclic number.

It is not a de Polignac number, because 1138517 - 2¹² = 1134421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 767 + ... + 1692.

It is an arithmetic number, because the mean of its divisors is an integer number (285360).

2^1138517 is an apocalyptic number.

It is an amenable number.

1138517 is a deficient number, since it is larger than the sum of its proper divisors (2923).

1138517 is an equidigital number, since it uses as much as digits as its factorization.

1138517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922.

The product of its digits is 840, while the sum is 26.

The square root of 1138517 is about 1067.0131208190. The cubic root of 1138517 is about 104.4190745768.

The spelling of 1138517 in words is "one million, one hundred thirty-eight thousand, five hundred seventeen".