1106161081 has 9 divisors (see below), whose sum is σ = 1123007823. Its totient is φ = 1089564840.

The previous prime is 1106161079. The next prime is 1106161097. The reversal of 1106161081 is 1801616011.

The square root of 1106161081 is 33259.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5248681 + 1100912400 = 2291^2 + 33180^2 .

It is not a de Polignac number, because 1106161081 - 2¹ = 1106161079 is a prime.

It is a super-2 number, since 2×1106161081² = 2447184674238177122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1106161061) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2627251 + ... + 2627671.

It is an arithmetic number, because the mean of its divisors is an integer number (124778647).

Almost surely, 2^1106161081 is an apocalyptic number.

1106161081 is the 33259-th square number.

1106161081 is the 16630-th centered octagonal number.

It is an amenable number.

1106161081 is a deficient number, since it is larger than the sum of its proper divisors (16846742).

1106161081 is an frugal number, since it uses more digits than its factorization.

1106161081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 25.

The cubic root of 1106161081 is about 1034.2037894579.

Multiplying 1106161081 by its sum of digits (25), we get a square (27654027025 = 166295²).

Adding to 1106161081 its reverse (1801616011), we get a palindrome (2907777092).

The spelling of 1106161081 in words is "one billion, one hundred six million, one hundred sixty-one thousand, eighty-one".