132121564541 has 4 divisors (see below), whose sum is σ = 132310041084. Its totient is φ = 131933088000.

The previous prime is 132121564537. The next prime is 132121564559. The reversal of 132121564541 is 145465121231.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 110403352900 + 21718211641 = 332270^2 + 147371^2 .

It is a cyclic number.

It is not a de Polignac number, because 132121564541 - 2² = 132121564537 is a prime.

It is a super-2 number, since 2×132121564541² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132121564511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94237220 + ... + 94238621.

It is an arithmetic number, because the mean of its divisors is an integer number (33077510271).

Almost surely, 2^132121564541 is an apocalyptic number.

It is an amenable number.

132121564541 is a deficient number, since it is larger than the sum of its proper divisors (188476543).

132121564541 is an equidigital number, since it uses as much as digits as its factorization.

132121564541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188476542.

The product of its digits is 28800, while the sum is 35.

Adding to 132121564541 its reverse (145465121231), we get a palindrome (277586685772).

The spelling of 132121564541 in words is "one hundred thirty-two billion, one hundred twenty-one million, five hundred sixty-four thousand, five hundred forty-one".