1121175840 has 96 divisors (see below), whose sum is σ = 3739478400. Its totient is φ = 281391104.

The previous prime is 1121175817. The next prime is 1121175841. The reversal of 1121175840 is 485711211.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1121175798 and 1121175807.

It is not an unprimeable number, because it can be changed into a prime (1121175841) 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, 60540 + ... + 76859.

It is an arithmetic number, because the mean of its divisors is an integer number (38952900).

Almost surely, 2^1121175840 is an apocalyptic number.

1121175840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121175840 is an abundant number, since it is smaller than the sum of its proper divisors (2618302560).

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

1121175840 is a wasteful number, since it uses less digits than its factorization.

1121175840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137434 (or 137426 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 30.

The square root of 1121175840 is about 33483.9639230483. The cubic root of 1121175840 is about 1038.8621183977.

The spelling of 1121175840 in words is "one billion, one hundred twenty-one million, one hundred seventy-five thousand, eight hundred forty".