1121847938 has 4 divisors (see below), whose sum is σ = 1682771910. Its totient is φ = 560923968.

The previous prime is 1121847911. The next prime is 1121847949. The reversal of 1121847938 is 8397481211.

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

It can be written as a sum of positive squares in only one way, i.e., 1059958249 + 61889689 = 32557^2 + 7867^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280461983 + ... + 280461986.

Almost surely, 2^1121847938 is an apocalyptic number.

1121847938 is a deficient number, since it is larger than the sum of its proper divisors (560923972).

1121847938 is an equidigital number, since it uses as much as digits as its factorization.

1121847938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560923971.

The product of its digits is 96768, while the sum is 44.

The square root of 1121847938 is about 33493.9985370514. The cubic root of 1121847938 is about 1039.0696617215.

The spelling of 1121847938 in words is "one billion, one hundred twenty-one million, eight hundred forty-seven thousand, nine hundred thirty-eight".