1147087 has 4 divisors (see below), whose sum is σ = 1207480. Its totient is φ = 1086696.

The previous prime is 1147073. The next prime is 1147099. The reversal of 1147087 is 7807411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7807411 = 59 ⋅132329.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1147087 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 (1147067) 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, 30168 + ... + 30205.

It is an arithmetic number, because the mean of its divisors is an integer number (301870).

2^1147087 is an apocalyptic number.

1147087 is a deficient number, since it is larger than the sum of its proper divisors (60393).

1147087 is an equidigital number, since it uses as much as digits as its factorization.

1147087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60392.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 1147087 is about 1071.0214750415. The cubic root of 1147087 is about 104.6804190800.

The spelling of 1147087 in words is "one million, one hundred forty-seven thousand, eighty-seven".