133042205 has 4 divisors (see below), whose sum is σ = 159650652. Its totient is φ = 106433760.

The previous prime is 133042201. The next prime is 133042211. The reversal of 133042205 is 502240331.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25836889 + 107205316 = 5083^2 + 10354^2 .

It is not a de Polignac number, because 133042205 - 2² = 133042201 is a prime.

It is a super-2 number, since 2×133042205² = 35400456622524050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133042201) 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, 13304216 + ... + 13304225.

It is an arithmetic number, because the mean of its divisors is an integer number (39912663).

Almost surely, 2^133042205 is an apocalyptic number.

It is an amenable number.

133042205 is a deficient number, since it is larger than the sum of its proper divisors (26608447).

133042205 is an equidigital number, since it uses as much as digits as its factorization.

133042205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26608446.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 133042205 is about 11534.3922683425. The cubic root of 133042205 is about 510.5008599993.

Adding to 133042205 its reverse (502240331), we get a palindrome (635282536).

The spelling of 133042205 in words is "one hundred thirty-three million, forty-two thousand, two hundred five".