133100461 has 8 divisors (see below), whose sum is σ = 143695160. Its totient is φ = 122556672.

The previous prime is 133100447. The next prime is 133100467. The reversal of 133100461 is 164001331.

It can be written as a sum of positive squares in 4 ways, for example, as 5546025 + 127554436 = 2355^2 + 11294^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133100461 - 2⁹ = 133099949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133100467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7200 + ... + 17833.

It is an arithmetic number, because the mean of its divisors is an integer number (17961895).

Almost surely, 2^133100461 is an apocalyptic number.

It is an amenable number.

133100461 is a deficient number, since it is larger than the sum of its proper divisors (10594699).

133100461 is a wasteful number, since it uses less digits than its factorization.

133100461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25455.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 133100461 is about 11536.9173092295. The cubic root of 133100461 is about 510.5753611657.

Adding to 133100461 its reverse (164001331), we get a palindrome (297101792).

The spelling of 133100461 in words is "one hundred thirty-three million, one hundred thousand, four hundred sixty-one".