133452249 has 32 divisors (see below), whose sum is σ = 207550464. Its totient is φ = 74701440.

The previous prime is 133452203. The next prime is 133452281. The reversal of 133452249 is 942254331.

It is not a de Polignac number, because 133452249 - 2¹⁶ = 133386713 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133452289) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 403014 + ... + 403344.

It is an arithmetic number, because the mean of its divisors is an integer number (6485952).

Almost surely, 2^133452249 is an apocalyptic number.

It is an amenable number.

133452249 is a deficient number, since it is larger than the sum of its proper divisors (74098215).

133452249 is a wasteful number, since it uses less digits than its factorization.

133452249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677.

The product of its digits is 25920, while the sum is 33.

The square root of 133452249 is about 11552.1534356154. The cubic root of 133452249 is about 511.0247867951.

The spelling of 133452249 in words is "one hundred thirty-three million, four hundred fifty-two thousand, two hundred forty-nine".