133624249 has 4 divisors (see below), whose sum is σ = 145771920. Its totient is φ = 121476580.

The previous prime is 133624247. The next prime is 133624259. The reversal of 133624249 is 942426331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133624249 - 2¹ = 133624247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133624241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6073819 + ... + 6073840.

It is an arithmetic number, because the mean of its divisors is an integer number (36442980).

Almost surely, 2^133624249 is an apocalyptic number.

It is an amenable number.

133624249 is a deficient number, since it is larger than the sum of its proper divisors (12147671).

133624249 is a wasteful number, since it uses less digits than its factorization.

133624249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12147670.

The product of its digits is 31104, while the sum is 34.

The square root of 133624249 is about 11559.5955379070. The cubic root of 133624249 is about 511.2442373958.

The spelling of 133624249 in words is "one hundred thirty-three million, six hundred twenty-four thousand, two hundred forty-nine".