1131315 has 16 divisors (see below), whose sum is σ = 1824000. Its totient is φ = 598752.

The previous prime is 1131307. The next prime is 1131323. The reversal of 1131315 is 5131311.

It is an interprime number because it is at equal distance from previous prime (1131307) and next prime (1131323).

It is not a de Polignac number, because 1131315 - 2³ = 1131307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1131294 and 1131303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2796 + ... + 3174.

It is an arithmetic number, because the mean of its divisors is an integer number (114000).

2^1131315 is an apocalyptic number.

1131315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1131315 is a deficient number, since it is larger than the sum of its proper divisors (692685).

1131315 is a wasteful number, since it uses less digits than its factorization.

1131315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586.

The product of its digits is 45, while the sum is 15.

The square root of 1131315 is about 1063.6329254024. The cubic root of 1131315 is about 104.1984315570.

Adding to 1131315 its reverse (5131311), we get a palindrome (6262626).

The spelling of 1131315 in words is "one million, one hundred thirty-one thousand, three hundred fifteen".