1151455515 has 16 divisors (see below), whose sum is σ = 2105518848. Its totient is φ = 526379616.

The previous prime is 1151455511. The next prime is 1151455517. The reversal of 1151455515 is 5155541511.

It is not a de Polignac number, because 1151455515 - 2² = 1151455511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1151455511) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5483017 + ... + 5483226.

It is an arithmetic number, because the mean of its divisors is an integer number (131594928).

Almost surely, 2^1151455515 is an apocalyptic number.

1151455515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1151455515 is a deficient number, since it is larger than the sum of its proper divisors (954063333).

1151455515 is a wasteful number, since it uses less digits than its factorization.

1151455515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10966258.

The product of its digits is 12500, while the sum is 33.

The square root of 1151455515 is about 33933.1035273816. The cubic root of 1151455515 is about 1048.1313748999.

It can be divided in two parts, 11 and 51455515, that multiplied together give a palindrome (566010665).

The spelling of 1151455515 in words is "one billion, one hundred fifty-one million, four hundred fifty-five thousand, five hundred fifteen".