1200561441 has 8 divisors (see below), whose sum is σ = 1627880160. Its totient is φ = 786808512.

The previous prime is 1200561407. The next prime is 1200561443. The reversal of 1200561441 is 1441650021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1200561441 - 2⁶ = 1200561377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1200561443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3391240 + ... + 3391593.

It is an arithmetic number, because the mean of its divisors is an integer number (203485020).

Almost surely, 2^1200561441 is an apocalyptic number.

It is an amenable number.

1200561441 is a deficient number, since it is larger than the sum of its proper divisors (427318719).

1200561441 is an equidigital number, since it uses as much as digits as its factorization.

1200561441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6782895.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1200561441 is about 34649.1189065465. The cubic root of 1200561441 is about 1062.8242711458.

The spelling of 1200561441 in words is "one billion, two hundred million, five hundred sixty-one thousand, four hundred forty-one".