1146121165 has 16 divisors (see below), whose sum is σ = 1640164608. Its totient is φ = 751741056.

The previous prime is 1146121159. The next prime is 1146121189. The reversal of 1146121165 is 5611216411.

It is a cyclic number.

It is not a de Polignac number, because 1146121165 - 2¹⁷ = 1145990093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 711072 + ... + 712681.

It is an arithmetic number, because the mean of its divisors is an integer number (102510288).

Almost surely, 2^1146121165 is an apocalyptic number.

It is an amenable number.

1146121165 is a deficient number, since it is larger than the sum of its proper divisors (494043443).

1146121165 is a wasteful number, since it uses less digits than its factorization.

1146121165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423788.

The product of its digits is 1440, while the sum is 28.

The square root of 1146121165 is about 33854.4113078340. The cubic root of 1146121165 is about 1046.5103089874.

Adding to 1146121165 its reverse (5611216411), we get a palindrome (6757337576).

The spelling of 1146121165 in words is "one billion, one hundred forty-six million, one hundred twenty-one thousand, one hundred sixty-five".