1121515165 has 8 divisors (see below), whose sum is σ = 1346042880. Its totient is φ = 897062352.

The previous prime is 1121515151. The next prime is 1121515183. The reversal of 1121515165 is 5615151211.

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 1121515165 - 2¹³ = 1121506973 is a prime.

It is a super-3 number, since 3×1121515165³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 22456 + ... + 52414.

It is an arithmetic number, because the mean of its divisors is an integer number (168255360).

Almost surely, 2^1121515165 is an apocalyptic number.

It is an amenable number.

1121515165 is a deficient number, since it is larger than the sum of its proper divisors (224527715).

1121515165 is an equidigital number, since it uses as much as digits as its factorization.

1121515165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37451.

The product of its digits is 1500, while the sum is 28.

The square root of 1121515165 is about 33489.0305174694. The cubic root of 1121515165 is about 1038.9669120494.

Adding to 1121515165 its reverse (5615151211), we get a palindrome (6736666376).

The spelling of 1121515165 in words is "one billion, one hundred twenty-one million, five hundred fifteen thousand, one hundred sixty-five".