5641326121 has 8 divisors (see below), whose sum is σ = 5973986304. Its totient is φ = 5308756800.

The previous prime is 5641326077. The next prime is 5641326137. The reversal of 5641326121 is 1216231465.

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 a de Polignac number, because none of the positive numbers 2^k-5641326121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5641326151) 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, 137436 + ... + 173698.

It is an arithmetic number, because the mean of its divisors is an integer number (746748288).

Almost surely, 2^5641326121 is an apocalyptic number.

It is an amenable number.

5641326121 is a deficient number, since it is larger than the sum of its proper divisors (332660183).

5641326121 is a wasteful number, since it uses less digits than its factorization.

5641326121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45431.

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

The square root of 5641326121 is about 75108.7619455946. The cubic root of 5641326121 is about 1780.1655908945.

Adding to 5641326121 its reverse (1216231465), we get a palindrome (6857557586).

The spelling of 5641326121 in words is "five billion, six hundred forty-one million, three hundred twenty-six thousand, one hundred twenty-one".