1031087 has 4 divisors (see below), whose sum is σ = 1033320. Its totient is φ = 1028856.

The previous prime is 1031081. The next prime is 1031117. The reversal of 1031087 is 7801301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7801301 = 23 ⋅339187.

It is a cyclic number.

It is not a de Polignac number, because 1031087 - 2⁸ = 1030831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031081) 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, 137 + ... + 1442.

It is an arithmetic number, because the mean of its divisors is an integer number (258330).

2^1031087 is an apocalyptic number.

1031087 is a deficient number, since it is larger than the sum of its proper divisors (2233).

1031087 is an equidigital number, since it uses as much as digits as its factorization.

1031087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1031087 is about 1015.4245417558. The cubic root of 1031087 is about 101.0256772280.

Adding to 1031087 its reverse (7801301), we get a palindrome (8832388).

The spelling of 1031087 in words is "one million, thirty-one thousand, eighty-seven".