133313155 has 8 divisors (see below), whose sum is σ = 162687600. Its totient is φ = 104842656.

The previous prime is 133313153. The next prime is 133313161. The reversal of 133313155 is 551313331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133313155 - 2¹ = 133313153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133313153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225660 + ... + 226249.

It is an arithmetic number, because the mean of its divisors is an integer number (20335950).

Almost surely, 2^133313155 is an apocalyptic number.

133313155 is a deficient number, since it is larger than the sum of its proper divisors (29374445).

133313155 is an equidigital number, since it uses as much as digits as its factorization.

133313155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451973.

The product of its digits is 2025, while the sum is 25.

The square root of 133313155 is about 11546.1316032687. The cubic root of 133313155 is about 510.8471822169.

Adding to 133313155 its reverse (551313331), we get a palindrome (684626486).

The spelling of 133313155 in words is "one hundred thirty-three million, three hundred thirteen thousand, one hundred fifty-five".