133113243 has 8 divisors (see below), whose sum is σ = 179143488. Its totient is φ = 87912584.

The previous prime is 133113241. The next prime is 133113283. The reversal of 133113243 is 342311331.

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 133113243 - 2¹ = 133113241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133113241) 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, 207021 + ... + 207662.

It is an arithmetic number, because the mean of its divisors is an integer number (22392936).

Almost surely, 2^133113243 is an apocalyptic number.

133113243 is a deficient number, since it is larger than the sum of its proper divisors (46030245).

133113243 is a wasteful number, since it uses less digits than its factorization.

133113243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414793.

The product of its digits is 648, while the sum is 21.

The square root of 133113243 is about 11537.4712567356. The cubic root of 133113243 is about 510.5917046237.

Adding to 133113243 its reverse (342311331), we get a palindrome (475424574).

The spelling of 133113243 in words is "one hundred thirty-three million, one hundred thirteen thousand, two hundred forty-three".