1131654 has 8 divisors (see below), whose sum is σ = 2263320. Its totient is φ = 377216.

The previous prime is 1131653. The next prime is 1131671. The reversal of 1131654 is 4561311.

It is a sphenic number, since it is the product of 3 distinct primes.

1131654 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1131654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94299 + ... + 94310.

It is an arithmetic number, because the mean of its divisors is an integer number (282915).

2^1131654 is an apocalyptic number.

1131654 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1131654 is a wasteful number, since it uses less digits than its factorization.

1131654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188614.

The product of its digits is 360, while the sum is 21.

The square root of 1131654 is about 1063.7922729556. The cubic root of 1131654 is about 104.2088382491.

Adding to 1131654 its reverse (4561311), we get a palindrome (5692965).

The spelling of 1131654 in words is "one million, one hundred thirty-one thousand, six hundred fifty-four".