1121962505 has 4 divisors (see below), whose sum is σ = 1346355012. Its totient is φ = 897570000.

The previous prime is 1121962489. The next prime is 1121962511. The reversal of 1121962505 is 5052691211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 634082761 + 487879744 = 25181^2 + 22088^2 .

It is not a de Polignac number, because 1121962505 - 2⁴ = 1121962489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112196246 + ... + 112196255.

It is an arithmetic number, because the mean of its divisors is an integer number (336588753).

Almost surely, 2^1121962505 is an apocalyptic number.

It is an amenable number.

1121962505 is a deficient number, since it is larger than the sum of its proper divisors (224392507).

1121962505 is an equidigital number, since it uses as much as digits as its factorization.

1121962505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224392506.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 1121962505 is about 33495.7087550032. The cubic root of 1121962505 is about 1039.1050316493.

The spelling of 1121962505 in words is "one billion, one hundred twenty-one million, nine hundred sixty-two thousand, five hundred five".