133355139 has 4 divisors (see below), whose sum is σ = 177806856. Its totient is φ = 88903424.

The previous prime is 133355107. The next prime is 133355143. The reversal of 133355139 is 931553331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133355139 - 2⁵ = 133355107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133355039) 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, 22225854 + ... + 22225859.

It is an arithmetic number, because the mean of its divisors is an integer number (44451714).

Almost surely, 2^133355139 is an apocalyptic number.

133355139 is a deficient number, since it is larger than the sum of its proper divisors (44451717).

133355139 is an equidigital number, since it uses as much as digits as its factorization.

133355139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44451716.

The product of its digits is 18225, while the sum is 33.

The square root of 133355139 is about 11547.9495582549. The cubic root of 133355139 is about 510.9008032244.

The spelling of 133355139 in words is "one hundred thirty-three million, three hundred fifty-five thousand, one hundred thirty-nine".