1087519 has 2 divisors, whose sum is σ = 1087520. Its totient is φ = 1087518.

The previous prime is 1087517. The next prime is 1087543. The reversal of 1087519 is 9157801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1087519 - 2¹ = 1087517 is a prime.

It is a super-2 number, since 2×1087519² = 2365395150722, which contains 22 as substring.

Together with 1087517, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1087517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543759 + 543760.

It is an arithmetic number, because the mean of its divisors is an integer number (543760).

2^1087519 is an apocalyptic number.

1087519 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087519 is an equidigital number, since it uses as much as digits as its factorization.

1087519 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1087519 is about 1042.8417904936. The cubic root of 1087519 is about 102.8361046956.

The spelling of 1087519 in words is "one million, eighty-seven thousand, five hundred nineteen".