1087195 has 4 divisors (see below), whose sum is σ = 1304640. Its totient is φ = 869752.

The previous prime is 1087159. The next prime is 1087231. The reversal of 1087195 is 5917801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5917801 = 157 ⋅37693.

It is an interprime number because it is at equal distance from previous prime (1087159) and next prime (1087231).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1087195 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

1087195 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108715 + ... + 108724.

It is an arithmetic number, because the mean of its divisors is an integer number (326160).

2^1087195 is an apocalyptic number.

1087195 is a deficient number, since it is larger than the sum of its proper divisors (217445).

1087195 is an equidigital number, since it uses as much as digits as its factorization.

1087195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217444.

The product of its (nonzero) digits is 2520, while the sum is 31.

The square root of 1087195 is about 1042.6864341690. The cubic root of 1087195 is about 102.8258911706.

The spelling of 1087195 in words is "one million, eighty-seven thousand, one hundred ninety-five".