1131607 has 4 divisors (see below), whose sum is σ = 1133856. Its totient is φ = 1129360.

The previous prime is 1131569. The next prime is 1131617. The reversal of 1131607 is 7061311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1131607 - 2⁷ = 1131479 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131617) 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, 18 + ... + 1504.

It is an arithmetic number, because the mean of its divisors is an integer number (283464).

2^1131607 is an apocalyptic number.

1131607 is a deficient number, since it is larger than the sum of its proper divisors (2249).

1131607 is an equidigital number, since it uses as much as digits as its factorization.

1131607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 1131607 is about 1063.7701819472. The cubic root of 1131607 is about 104.2073955575.

Adding to 1131607 its reverse (7061311), we get a palindrome (8192918).

The spelling of 1131607 in words is "one million, one hundred thirty-one thousand, six hundred seven".