1121575889 has 8 divisors (see below), whose sum is σ = 1282026240. Its totient is φ = 961181856.

The previous prime is 1121575879. The next prime is 1121575891. The reversal of 1121575889 is 9885751211.

1121575889 is nontrivially palindromic in base 11.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121575889 - 2⁸ = 1121575633 is a prime.

It is a super-4 number, since 4×1121575889⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121575879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45317 + ... + 65549.

It is an arithmetic number, because the mean of its divisors is an integer number (160253280).

Almost surely, 2^1121575889 is an apocalyptic number.

It is an amenable number.

1121575889 is a deficient number, since it is larger than the sum of its proper divisors (160450351).

1121575889 is an equidigital number, since it uses as much as digits as its factorization.

1121575889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28159.

The product of its digits is 201600, while the sum is 47.

The square root of 1121575889 is about 33489.9371304277. The cubic root of 1121575889 is about 1038.9856631967.

The spelling of 1121575889 in words is "one billion, one hundred twenty-one million, five hundred seventy-five thousand, eight hundred eighty-nine".