1153222515 has 40 divisors (see below), whose sum is σ = 2070819168. Its totient is φ = 613992960.

The previous prime is 1153222493. The next prime is 1153222519. The reversal of 1153222515 is 5152223511.

1153222515 is a `hidden beast` number, since 115 + 32 + 2 + 2 + 515 = 666.

It is not a de Polignac number, because 1153222515 - 2⁶ = 1153222451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1153222519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 270450 + ... + 274680.

Almost surely, 2^1153222515 is an apocalyptic number.

1153222515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1153222515 is a deficient number, since it is larger than the sum of its proper divisors (917596653).

1153222515 is an equidigital number, since it uses as much as digits as its factorization.

1153222515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4921 (or 4912 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 1153222515 is about 33959.1300683631. The cubic root of 1153222515 is about 1048.6672478452.

The spelling of 1153222515 in words is "one billion, one hundred fifty-three million, two hundred twenty-two thousand, five hundred fifteen".