1151988 has 24 divisors (see below), whose sum is σ = 2846592. Its totient is φ = 361344.

The previous prime is 1151987. The next prime is 1151993. The reversal of 1151988 is 8891511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151981) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2620 + ... + 3027.

It is an arithmetic number, because the mean of its divisors is an integer number (118608).

2^1151988 is an apocalyptic number.

It is an amenable number.

1151988 is an abundant number, since it is smaller than the sum of its proper divisors (1694604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1151988 is a wasteful number, since it uses less digits than its factorization.

1151988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5671 (or 5669 counting only the distinct ones).

The product of its digits is 2880, while the sum is 33.

The square root of 1151988 is about 1073.3070390154. The cubic root of 1151988 is about 104.8292917752.

The spelling of 1151988 in words is "one million, one hundred fifty-one thousand, nine hundred eighty-eight".