1161422133 has 16 divisors (see below), whose sum is σ = 1647023616. Its totient is φ = 725460480.

The previous prime is 1161422111. The next prime is 1161422137. The reversal of 1161422133 is 3312241611.

It is a happy number.

It is not a de Polignac number, because 1161422133 - 2⁶ = 1161422069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161422137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39688 + ... + 62433.

It is an arithmetic number, because the mean of its divisors is an integer number (102938976).

Almost surely, 2^1161422133 is an apocalyptic number.

It is an amenable number.

1161422133 is a deficient number, since it is larger than the sum of its proper divisors (485601483).

1161422133 is a wasteful number, since it uses less digits than its factorization.

1161422133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102364.

The product of its digits is 864, while the sum is 24.

The square root of 1161422133 is about 34079.6439682107. The cubic root of 1161422133 is about 1051.1467842426.

Adding to 1161422133 its reverse (3312241611), we get a palindrome (4473663744).

The spelling of 1161422133 in words is "one billion, one hundred sixty-one million, four hundred twenty-two thousand, one hundred thirty-three".