133401841 has 4 divisors (see below), whose sum is σ = 133558000. Its totient is φ = 133245684.

The previous prime is 133401809. The next prime is 133401881. The reversal of 133401841 is 148104331.

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 133401841 - 2⁵ = 133401809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133401881) 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, 76791 + ... + 78508.

It is an arithmetic number, because the mean of its divisors is an integer number (33389500).

Almost surely, 2^133401841 is an apocalyptic number.

It is an amenable number.

133401841 is a deficient number, since it is larger than the sum of its proper divisors (156159).

133401841 is an equidigital number, since it uses as much as digits as its factorization.

133401841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156158.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 133401841 is about 11549.9714718262. The cubic root of 133401841 is about 510.9604367331.

The spelling of 133401841 in words is "one hundred thirty-three million, four hundred one thousand, eight hundred forty-one".