1031138 has 8 divisors (see below), whose sum is σ = 1556688. Its totient is φ = 512244.

The previous prime is 1031137. The next prime is 1031141. The reversal of 1031138 is 8311301.

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

It is not an unprimeable number, because it can be changed into a prime (1031137) 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, 1256 + ... + 1907.

It is an arithmetic number, because the mean of its divisors is an integer number (194586).

2^1031138 is an apocalyptic number.

1031138 is a deficient number, since it is larger than the sum of its proper divisors (525550).

1031138 is a wasteful number, since it uses less digits than its factorization.

1031138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1031138 is about 1015.4496540942. The cubic root of 1031138 is about 101.0273428568.

Adding to 1031138 its reverse (8311301), we get a palindrome (9342439).

The spelling of 1031138 in words is "one million, thirty-one thousand, one hundred thirty-eight".