1031145 has 8 divisors (see below), whose sum is σ = 1649856. Its totient is φ = 549936.

The previous prime is 1031141. The next prime is 1031161. The reversal of 1031145 is 5411301.

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

It is not a de Polignac number, because 1031145 - 2² = 1031141 is a prime.

It is a super-2 number, since 2×1031145² = 2126520022050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 68743 = 1031145 / (1 + 0 + 3 + 1 + 1 + 4 + 5).

1031145 is a lucky 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 7 ways as a sum of consecutive naturals, for example, 34357 + ... + 34386.

It is an arithmetic number, because the mean of its divisors is an integer number (206232).

2^1031145 is an apocalyptic number.

1031145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1031145 is a deficient number, since it is larger than the sum of its proper divisors (618711).

1031145 is an equidigital number, since it uses as much as digits as its factorization.

1031145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68751.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1031145 is about 1015.4531008373. The cubic root of 1031145 is about 101.0275714682.

Adding to 1031145 its reverse (5411301), we get a palindrome (6442446).

It can be divided in two parts, 1031 and 145, that added together give a triangular number (1176 = T₄₈).

The spelling of 1031145 in words is "one million, thirty-one thousand, one hundred forty-five".