1131422205 has 16 divisors (see below), whose sum is σ = 1839953664. Its totient is φ = 593532480.

The previous prime is 1131422191. The next prime is 1131422207. The reversal of 1131422205 is 5022241311.

It is not a de Polignac number, because 1131422205 - 2⁴ = 1131422189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131422207) 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, 617349 + ... + 619178.

It is an arithmetic number, because the mean of its divisors is an integer number (114997104).

Almost surely, 2^1131422205 is an apocalyptic number.

1131422205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1131422205 is a deficient number, since it is larger than the sum of its proper divisors (708531459).

1131422205 is a wasteful number, since it uses less digits than its factorization.

1131422205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236596.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1131422205 is about 33636.6199996373. The cubic root of 1131422205 is about 1042.0172278298.

Adding to 1131422205 its reverse (5022241311), we get a palindrome (6153663516).

The spelling of 1131422205 in words is "one billion, one hundred thirty-one million, four hundred twenty-two thousand, two hundred five".