1153131515 has 8 divisors (see below), whose sum is σ = 1384135440. Its totient is φ = 922253472.

The previous prime is 1153131509. The next prime is 1153131517. The reversal of 1153131515 is 5151313511.

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

It is a cyclic number.

It is not a de Polignac number, because 1153131515 - 2¹⁸ = 1152869371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1153131517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9980 + ... + 49049.

It is an arithmetic number, because the mean of its divisors is an integer number (173016930).

Almost surely, 2^1153131515 is an apocalyptic number.

1153131515 is a deficient number, since it is larger than the sum of its proper divisors (231003925).

1153131515 is an equidigital number, since it uses as much as digits as its factorization.

1153131515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62941.

The product of its digits is 1125, while the sum is 26.

The square root of 1153131515 is about 33957.7901960655. The cubic root of 1153131515 is about 1048.6396639146.

The spelling of 1153131515 in words is "one billion, one hundred fifty-three million, one hundred thirty-one thousand, five hundred fifteen".