1204543141 has 8 divisors (see below), whose sum is σ = 1234455768. Its totient is φ = 1174656000.

The previous prime is 1204543139. The next prime is 1204543163. The reversal of 1204543141 is 1413454021.

It can be written as a sum of positive squares in 4 ways, for example, as 2464900 + 1202078241 = 1570^2 + 34671^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1204543141 - 2¹ = 1204543139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204543181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119851 + ... + 129511.

It is an arithmetic number, because the mean of its divisors is an integer number (154306971).

Almost surely, 2^1204543141 is an apocalyptic number.

It is an amenable number.

1204543141 is a deficient number, since it is larger than the sum of its proper divisors (29912627).

1204543141 is an equidigital number, since it uses as much as digits as its factorization.

1204543141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12743.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1204543141 is about 34706.5287950264. The cubic root of 1204543141 is about 1063.9979380389.

Adding to 1204543141 its reverse (1413454021), we get a palindrome (2617997162).

The spelling of 1204543141 in words is "one billion, two hundred four million, five hundred forty-three thousand, one hundred forty-one".