1138971 has 16 divisors (see below), whose sum is σ = 1614848. Its totient is φ = 712800.

The previous prime is 1138967. The next prime is 1138979. The reversal of 1138971 is 1798311.

It is not a de Polignac number, because 1138971 - 2² = 1138967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1138979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3276 + ... + 3606.

It is an arithmetic number, because the mean of its divisors is an integer number (100928).

2^1138971 is an apocalyptic number.

1138971 is a deficient number, since it is larger than the sum of its proper divisors (475877).

1138971 is a wasteful number, since it uses less digits than its factorization.

1138971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402.

The product of its digits is 1512, while the sum is 30.

The square root of 1138971 is about 1067.2258430154. The cubic root of 1138971 is about 104.4329522674.

The spelling of 1138971 in words is "one million, one hundred thirty-eight thousand, nine hundred seventy-one".