133553249 has 8 divisors (see below), whose sum is σ = 139732992. Its totient is φ = 127404640.

The previous prime is 133553237. The next prime is 133553263. The reversal of 133553249 is 942355331.

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 133553249 - 2¹² = 133549153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133553279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1229 + ... + 16389.

It is an arithmetic number, because the mean of its divisors is an integer number (17466624).

Almost surely, 2^133553249 is an apocalyptic number.

It is an amenable number.

133553249 is a deficient number, since it is larger than the sum of its proper divisors (6179743).

133553249 is a wasteful number, since it uses less digits than its factorization.

133553249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15567.

The product of its digits is 48600, while the sum is 35.

The square root of 133553249 is about 11556.5240881504. The cubic root of 133553249 is about 511.1536730659.

The spelling of 133553249 in words is "one hundred thirty-three million, five hundred fifty-three thousand, two hundred forty-nine".