1161422252 has 24 divisors (see below), whose sum is σ = 2204541360. Its totient is φ = 533219840.

The previous prime is 1161422233. The next prime is 1161422263. The reversal of 1161422252 is 2522241611.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205502 + ... + 211077.

It is an arithmetic number, because the mean of its divisors is an integer number (91855890).

Almost surely, 2^1161422252 is an apocalyptic number.

It is an amenable number.

1161422252 is a deficient number, since it is larger than the sum of its proper divisors (1043119108).

1161422252 is a wasteful number, since it uses less digits than its factorization.

1161422252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416641 (or 416639 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 1161422252 is about 34079.6457141209. The cubic root of 1161422252 is about 1051.1468201430.

Adding to 1161422252 its reverse (2522241611), we get a palindrome (3683663863).

The spelling of 1161422252 in words is "one billion, one hundred sixty-one million, four hundred twenty-two thousand, two hundred fifty-two".