1200142441 has 6 divisors (see below), whose sum is σ = 1223216750. Its totient is φ = 1177495488.

The previous prime is 1200142393. The next prime is 1200142453. The reversal of 1200142441 is 1442410021.

It can be written as a sum of positive squares in 3 ways, for example, as 488586816 + 711555625 = 22104^2 + 26675^2 .

It is not a de Polignac number, because 1200142441 - 2¹¹ = 1200140393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200142241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210816 + ... + 216433.

Almost surely, 2^1200142441 is an apocalyptic number.

It is an amenable number.

1200142441 is a deficient number, since it is larger than the sum of its proper divisors (23074309).

1200142441 is an frugal number, since it uses more digits than its factorization.

1200142441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427355 (or 427302 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1200142441 is about 34643.0720491125. The cubic root of 1200142441 is about 1062.7006136717.

Adding to 1200142441 its reverse (1442410021), we get a palindrome (2642552462).

It can be divided in two parts, 1200 and 142441, that added together give a square (143641 = 379²).

The spelling of 1200142441 in words is "one billion, two hundred million, one hundred forty-two thousand, four hundred forty-one".