1148217515 has 8 divisors (see below), whose sum is σ = 1382947008. Its totient is φ = 915183360.

The previous prime is 1148217509. The next prime is 1148217547. The reversal of 1148217515 is 5157128411.

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

It is not a de Polignac number, because 1148217515 - 2¹² = 1148213419 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422342 + ... + 425051.

It is an arithmetic number, because the mean of its divisors is an integer number (172868376).

Almost surely, 2^1148217515 is an apocalyptic number.

1148217515 is a deficient number, since it is larger than the sum of its proper divisors (234729493).

1148217515 is an equidigital number, since it uses as much as digits as its factorization.

1148217515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847669.

The product of its digits is 11200, while the sum is 35.

The square root of 1148217515 is about 33885.3584162836. The cubic root of 1148217515 is about 1047.1479715464.

The spelling of 1148217515 in words is "one billion, one hundred forty-eight million, two hundred seventeen thousand, five hundred fifteen".