1036661121 has 12 divisors (see below), whose sum is σ = 1501314048. Its totient is φ = 689300664.

The previous prime is 1036661099. The next prime is 1036661141. The reversal of 1036661121 is 1211666301.

It is not a de Polignac number, because 1036661121 - 2⁷ = 1036660993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1036661141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146925 + ... + 153818.

It is an arithmetic number, because the mean of its divisors is an integer number (125109504).

Almost surely, 2^1036661121 is an apocalyptic number.

It is an amenable number.

1036661121 is a deficient number, since it is larger than the sum of its proper divisors (464652927).

1036661121 is a wasteful number, since it uses less digits than its factorization.

1036661121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301132 (or 301129 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1036661121 is about 32197.2222559649. Note that the first 4 decimals coincide. The cubic root of 1036661121 is about 1012.0740053391.

The spelling of 1036661121 in words is "one billion, thirty-six million, six hundred sixty-one thousand, one hundred twenty-one".