133115361 has 8 divisors (see below), whose sum is σ = 177673824. Its totient is φ = 88650240.

The previous prime is 133115347. The next prime is 133115371. The reversal of 133115361 is 163511331.

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

It is not a de Polignac number, because 133115361 - 2¹⁰ = 133114337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133115341) 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, 19936 + ... + 25761.

It is an arithmetic number, because the mean of its divisors is an integer number (22209228).

Almost surely, 2^133115361 is an apocalyptic number.

It is an amenable number.

133115361 is a deficient number, since it is larger than the sum of its proper divisors (44558463).

133115361 is an equidigital number, since it uses as much as digits as its factorization.

133115361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46671.

The product of its digits is 810, while the sum is 24.

The square root of 133115361 is about 11537.5630442481. The cubic root of 133115361 is about 510.5944126625.

Adding to 133115361 its reverse (163511331), we get a palindrome (296626692).

The spelling of 133115361 in words is "one hundred thirty-three million, one hundred fifteen thousand, three hundred sixty-one".