133412441 has 4 divisors (see below), whose sum is σ = 138012900. Its totient is φ = 128811984.

The previous prime is 133412407. The next prime is 133412449. The reversal of 133412441 is 144214331.

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 59521225 + 73891216 = 7715^2 + 8596^2 .

It is a cyclic number.

It is not a de Polignac number, because 133412441 - 2¹⁴ = 133396057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133412449) 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, 2300186 + ... + 2300243.

It is an arithmetic number, because the mean of its divisors is an integer number (34503225).

Almost surely, 2^133412441 is an apocalyptic number.

It is an amenable number.

133412441 is a deficient number, since it is larger than the sum of its proper divisors (4600459).

133412441 is an equidigital number, since it uses as much as digits as its factorization.

133412441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4600458.

The product of its digits is 1152, while the sum is 23.

The square root of 133412441 is about 11550.4303383034. The cubic root of 133412441 is about 510.9739698726.

Adding to 133412441 its reverse (144214331), we get a palindrome (277626772).

The spelling of 133412441 in words is "one hundred thirty-three million, four hundred twelve thousand, four hundred forty-one".