133344461 has 4 divisors (see below), whose sum is σ = 135222624. Its totient is φ = 131466300.

The previous prime is 133344457. The next prime is 133344473. The reversal of 133344461 is 164443331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 164443331 = 13 ⋅12649487.

It is a cyclic number.

It is not a de Polignac number, because 133344461 - 2² = 133344457 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133344401) 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 3 ways as a sum of consecutive naturals, for example, 938975 + ... + 939116.

It is an arithmetic number, because the mean of its divisors is an integer number (33805656).

Almost surely, 2^133344461 is an apocalyptic number.

It is an amenable number.

133344461 is a deficient number, since it is larger than the sum of its proper divisors (1878163).

133344461 is an equidigital number, since it uses as much as digits as its factorization.

133344461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878162.

The product of its digits is 10368, while the sum is 29.

The square root of 133344461 is about 11547.4872158405. The cubic root of 133344461 is about 510.8871665936.

Adding to 133344461 its reverse (164443331), we get a palindrome (297787792).

The spelling of 133344461 in words is "one hundred thirty-three million, three hundred forty-four thousand, four hundred sixty-one".