1131015 has 8 divisors (see below), whose sum is σ = 1809648. Its totient is φ = 603200.

The previous prime is 1130981. The next prime is 1131023. The reversal of 1131015 is 5101311.

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

It is not a de Polignac number, because 1131015 - 2⁶ = 1130951 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 37686 + ... + 37715.

It is an arithmetic number, because the mean of its divisors is an integer number (226206).

2^1131015 is an apocalyptic number.

1131015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1131015 is a deficient number, since it is larger than the sum of its proper divisors (678633).

1131015 is an equidigital number, since it uses as much as digits as its factorization.

1131015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75409.

The product of its (nonzero) digits is 15, while the sum is 12.

The square root of 1131015 is about 1063.4918899550. The cubic root of 1131015 is about 104.1892203609.

Adding to 1131015 its reverse (5101311), we get a palindrome (6232326).

It can be divided in two parts, 11310 and 15, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 1131015 in words is "one million, one hundred thirty-one thousand, fifteen".