1138615 has 8 divisors (see below), whose sum is σ = 1425888. Its totient is φ = 871200.

The previous prime is 1138591. The next prime is 1138637. The reversal of 1138615 is 5168311.

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

It is not a de Polignac number, because 1138615 - 2¹¹ = 1136567 is a prime.

It is a Duffinian number.

1138615 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1138615.

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, 4836 + ... + 5065.

It is an arithmetic number, because the mean of its divisors is an integer number (178236).

2^1138615 is an apocalyptic number.

1138615 is a deficient number, since it is larger than the sum of its proper divisors (287273).

1138615 is an equidigital number, since it uses as much as digits as its factorization.

1138615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9929.

The product of its digits is 720, while the sum is 25.

The square root of 1138615 is about 1067.0590424152. The cubic root of 1138615 is about 104.4220705138.

The spelling of 1138615 in words is "one million, one hundred thirty-eight thousand, six hundred fifteen".