1123132515 has 8 divisors (see below), whose sum is σ = 1797012048. Its totient is φ = 599004000.

The previous prime is 1123132513. The next prime is 1123132531. The reversal of 1123132515 is 5152313211.

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

It is not a de Polignac number, because 1123132515 - 2¹ = 1123132513 is a prime.

It is a super-2 number, since 2×1123132515² = 2522853292500450450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123132513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37437736 + ... + 37437765.

It is an arithmetic number, because the mean of its divisors is an integer number (224626506).

Almost surely, 2^1123132515 is an apocalyptic number.

1123132515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1123132515 is a deficient number, since it is larger than the sum of its proper divisors (673879533).

1123132515 is an equidigital number, since it uses as much as digits as its factorization.

1123132515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74875509.

The product of its digits is 900, while the sum is 24.

The square root of 1123132515 is about 33513.1692771663. The cubic root of 1123132515 is about 1039.4661075641.

Adding to 1123132515 its reverse (5152313211), we get a palindrome (6275445726).

The spelling of 1123132515 in words is "one billion, one hundred twenty-three million, one hundred thirty-two thousand, five hundred fifteen".