1031140 has 48 divisors (see below), whose sum is σ = 2439360. Its totient is φ = 362880.

The previous prime is 1031137. The next prime is 1031141. The reversal of 1031140 is 411301.

1031140 = 109² + 110² + ... + 163².

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031141) 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, 9406 + ... + 9514.

It is an arithmetic number, because the mean of its divisors is an integer number (50820).

2^1031140 is an apocalyptic number.

1031140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1219680).

1031140 is an abundant number, since it is smaller than the sum of its proper divisors (1408220).

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

1031140 is a wasteful number, since it uses less digits than its factorization.

1031140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1031140 is about 1015.4506388791. The cubic root of 1031140 is about 101.0274081745.

Adding to 1031140 its reverse (411301), we get a palindrome (1442441).

The spelling of 1031140 in words is "one million, thirty-one thousand, one hundred forty".