133241205 has 32 divisors (see below), whose sum is σ = 228666240. Its totient is φ = 66044160.

The previous prime is 133241201. The next prime is 133241209. The reversal of 133241205 is 502142331.

It is an interprime number because it is at equal distance from previous prime (133241201) and next prime (133241209).

It is not a de Polignac number, because 133241205 - 2² = 133241201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133241201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10695 + ... + 19515.

It is an arithmetic number, because the mean of its divisors is an integer number (7145820).

Almost surely, 2^133241205 is an apocalyptic number.

133241205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133241205 is a deficient number, since it is larger than the sum of its proper divisors (95425035).

133241205 is a wasteful number, since it uses less digits than its factorization.

133241205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8901.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 133241205 is about 11543.0154205909. The cubic root of 133241205 is about 510.7552631333.

Adding to 133241205 its reverse (502142331), we get a palindrome (635383536).

The spelling of 133241205 in words is "one hundred thirty-three million, two hundred forty-one thousand, two hundred five".