1145871112 has 8 divisors (see below), whose sum is σ = 2148508350. Its totient is φ = 572935552.

The previous prime is 1145871101. The next prime is 1145871119. The reversal of 1145871112 is 2111785411.

It can be written as a sum of positive squares in only one way, i.e., 1130707876 + 15163236 = 33626^2 + 3894^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1145871112² = 2626041210632233088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1145871119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71616937 + ... + 71616952.

Almost surely, 2^1145871112 is an apocalyptic number.

It is an amenable number.

1145871112 is a deficient number, since it is larger than the sum of its proper divisors (1002637238).

1145871112 is a wasteful number, since it uses less digits than its factorization.

1145871112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143233895 (or 143233891 counting only the distinct ones).

The product of its digits is 2240, while the sum is 31.

The square root of 1145871112 is about 33850.7180426058. The cubic root of 1145871112 is about 1046.4341965938.

The spelling of 1145871112 in words is "one billion, one hundred forty-five million, eight hundred seventy-one thousand, one hundred twelve".