1121915027 has 4 divisors (see below), whose sum is σ = 1137283800. Its totient is φ = 1106546256.

The previous prime is 1121915023. The next prime is 1121915087. The reversal of 1121915027 is 7205191211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121915027 - 2² = 1121915023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121915023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7684277 + ... + 7684422.

It is an arithmetic number, because the mean of its divisors is an integer number (284320950).

Almost surely, 2^1121915027 is an apocalyptic number.

1121915027 is a deficient number, since it is larger than the sum of its proper divisors (15368773).

1121915027 is an equidigital number, since it uses as much as digits as its factorization.

1121915027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15368772.

The product of its (nonzero) digits is 1260, while the sum is 29.

The square root of 1121915027 is about 33495.0000298552. Note that the first 4 decimals coincide. The cubic root of 1121915027 is about 1039.0903742003.

The spelling of 1121915027 in words is "one billion, one hundred twenty-one million, nine hundred fifteen thousand, twenty-seven".