1011138 has 8 divisors (see below), whose sum is σ = 2022288. Its totient is φ = 337044.

The previous prime is 1011137. The next prime is 1011139. The reversal of 1011138 is 8311101.

It is an interprime number because it is at equal distance from previous prime (1011137) and next prime (1011139).

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

1011138 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1011137) 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, 84256 + ... + 84267.

It is an arithmetic number, because the mean of its divisors is an integer number (252786).

2^1011138 is an apocalyptic number.

1011138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011138 is a wasteful number, since it uses less digits than its factorization.

1011138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168528.

The product of its (nonzero) digits is 24, while the sum is 15.

The square root of 1011138 is about 1005.5535788808. The cubic root of 1011138 is about 100.3698967436.

Adding to 1011138 its reverse (8311101), we get a palindrome (9322239).

The spelling of 1011138 in words is "one million, eleven thousand, one hundred thirty-eight".