133625345441321 has 4 divisors (see below), whose sum is σ = 133626931978500. Its totient is φ = 133623758904144.

The previous prime is 133625345441293. The next prime is 133625345441339. The reversal of 133625345441321 is 123144543526331.

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 58422541919296 + 75202803522025 = 7643464^2 + 8671955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133625345441321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133625345441381) 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, 793142246 + ... + 793310703.

It is an arithmetic number, because the mean of its divisors is an integer number (33406732994625).

Almost surely, 2^{133625345441321} is an apocalyptic number.

It is an amenable number.

133625345441321 is a deficient number, since it is larger than the sum of its proper divisors (1586537179).

133625345441321 is an equidigital number, since it uses as much as digits as its factorization.

133625345441321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586537178.

The product of its digits is 3110400, while the sum is 47.

Adding to 133625345441321 its reverse (123144543526331), we get a palindrome (256769888967652).

The spelling of 133625345441321 in words is "one hundred thirty-three trillion, six hundred twenty-five billion, three hundred forty-five million, four hundred forty-one thousand, three hundred twenty-one".