1131071922 has 18 divisors (see below), whose sum is σ = 2450965023. Its totient is φ = 376976412.

The previous prime is 1131071869. The next prime is 1131071939. The reversal of 1131071922 is 2291701311.

It can be written as a sum of positive squares in only one way, i.e., 565535961 + 565535961 = 23781^2 + 23781^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=23781.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 138723 + ... + 146649.

Almost surely, 2^1131071922 is an apocalyptic number.

1131071922 is an abundant number, since it is smaller than the sum of its proper divisors (1319893101).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131071922 is an frugal number, since it uses more digits than its factorization.

1131071922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15862 (or 7932 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 1131071922 is about 33631.4127267946. The cubic root of 1131071922 is about 1041.9096821842.

The spelling of 1131071922 in words is "one billion, one hundred thirty-one million, seventy-one thousand, nine hundred twenty-two".