133798461 has 4 divisors (see below), whose sum is σ = 178397952. Its totient is φ = 89198972.

The previous prime is 133798459. The next prime is 133798493. The reversal of 133798461 is 164897331.

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.

It is a cyclic number.

It is not a de Polignac number, because 133798461 - 2¹ = 133798459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133798411) 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, 22299741 + ... + 22299746.

It is an arithmetic number, because the mean of its divisors is an integer number (44599488).

Almost surely, 2^133798461 is an apocalyptic number.

It is an amenable number.

133798461 is a deficient number, since it is larger than the sum of its proper divisors (44599491).

133798461 is an equidigital number, since it uses as much as digits as its factorization.

133798461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44599490.

The product of its digits is 108864, while the sum is 42.

The square root of 133798461 is about 11567.1284682068. The cubic root of 133798461 is about 511.4663183523.

The spelling of 133798461 in words is "one hundred thirty-three million, seven hundred ninety-eight thousand, four hundred sixty-one".