2141263561 has 8 divisors (see below), whose sum is σ = 2208318464. Its totient is φ = 2074993200.

The previous prime is 2141263559. The next prime is 2141263571. The reversal of 2141263561 is 1653621412.

It is a happy number.

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 2141263561 - 2¹ = 2141263559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2141263571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190590 + ... + 201511.

It is an arithmetic number, because the mean of its divisors is an integer number (276039808).

Almost surely, 2^2141263561 is an apocalyptic number.

It is an amenable number.

2141263561 is a deficient number, since it is larger than the sum of its proper divisors (67054903).

2141263561 is a wasteful number, since it uses less digits than its factorization.

2141263561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392271.

The product of its digits is 8640, while the sum is 31.

The square root of 2141263561 is about 46273.7891359677. The cubic root of 2141263561 is about 1288.9123217568.

Adding to 2141263561 its reverse (1653621412), we get a palindrome (3794884973).

The spelling of 2141263561 in words is "two billion, one hundred forty-one million, two hundred sixty-three thousand, five hundred sixty-one".