1153287 has 12 divisors (see below), whose sum is σ = 1680640. Its totient is φ = 762048.

The previous prime is 1153277. The next prime is 1153309. The reversal of 1153287 is 7823511.

It is not a de Polignac number, because 1153287 - 2⁶ = 1153223 is a prime.

It is a Duffinian number.

1153287 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1153287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 639 + ... + 1647.

2^1153287 is an apocalyptic number.

1153287 is a deficient number, since it is larger than the sum of its proper divisors (527353).

1153287 is a wasteful number, since it uses less digits than its factorization.

1153287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142 (or 1139 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 1153287 is about 1073.9120075686. The cubic root of 1153287 is about 104.8686793668.

Adding to 1153287 its reverse (7823511), we get a palindrome (8976798).

The spelling of 1153287 in words is "one million, one hundred fifty-three thousand, two hundred eighty-seven".