1102161155 has 4 divisors (see below), whose sum is σ = 1322593392. Its totient is φ = 881728920.

The previous prime is 1102161131. The next prime is 1102161157. The reversal of 1102161155 is 5511612011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5511612011 = 2111 ⋅2610901.

It is a de Polignac number, because none of the positive numbers 2^k-1102161155 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1102161155.

It is not an unprimeable number, because it can be changed into a prime (1102161157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110216111 + ... + 110216120.

It is an arithmetic number, because the mean of its divisors is an integer number (330648348).

Almost surely, 2^1102161155 is an apocalyptic number.

1102161155 is a deficient number, since it is larger than the sum of its proper divisors (220432237).

1102161155 is an equidigital number, since it uses as much as digits as its factorization.

1102161155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220432236.

The product of its (nonzero) digits is 300, while the sum is 23.

The square root of 1102161155 is about 33198.8125540658. The cubic root of 1102161155 is about 1032.9557087618.

Adding to 1102161155 its reverse (5511612011), we get a palindrome (6613773166).

The spelling of 1102161155 in words is "one billion, one hundred two million, one hundred sixty-one thousand, one hundred fifty-five".