1200666241 has 4 divisors (see below), whose sum is σ = 1204764372. Its totient is φ = 1196568112.

The previous prime is 1200666227. The next prime is 1200666251. The reversal of 1200666241 is 1426660021.

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 1102240000 + 98426241 = 33200^2 + 9921^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200666241 - 2⁵ = 1200666209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200666251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2048626 + ... + 2049211.

It is an arithmetic number, because the mean of its divisors is an integer number (301191093).

Almost surely, 2^1200666241 is an apocalyptic number.

It is an amenable number.

1200666241 is a deficient number, since it is larger than the sum of its proper divisors (4098131).

1200666241 is an equidigital number, since it uses as much as digits as its factorization.

1200666241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4098130.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1200666241 is about 34650.6311775125. The cubic root of 1200666241 is about 1062.8551957724.

The spelling of 1200666241 in words is "one billion, two hundred million, six hundred sixty-six thousand, two hundred forty-one".