1031493 has 4 divisors (see below), whose sum is σ = 1375328. Its totient is φ = 687660.

The previous prime is 1031489. The next prime is 1031507. The reversal of 1031493 is 3941301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1031493 - 2² = 1031489 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171913 + ... + 171918.

It is an arithmetic number, because the mean of its divisors is an integer number (343832).

2^1031493 is an apocalyptic number.

It is an amenable number.

1031493 is a deficient number, since it is larger than the sum of its proper divisors (343835).

1031493 is an equidigital number, since it uses as much as digits as its factorization.

1031493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343834.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1031493 is about 1015.6244384614. The cubic root of 1031493 is about 101.0389354182.

Adding to 1031493 its reverse (3941301), we get a palindrome (4972794).

It can be divided in two parts, 103 and 1493, that added together give a triangular number (1596 = T₅₆).

The spelling of 1031493 in words is "one million, thirty-one thousand, four hundred ninety-three".