133853244 has 24 divisors (see below), whose sum is σ = 356942208. Its totient is φ = 38243760.

The previous prime is 133853231. The next prime is 133853263. The reversal of 133853244 is 442358331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 796662 + ... + 796829.

It is an arithmetic number, because the mean of its divisors is an integer number (14872592).

Almost surely, 2^133853244 is an apocalyptic number.

133853244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

133853244 is an abundant number, since it is smaller than the sum of its proper divisors (223088964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133853244 is a wasteful number, since it uses less digits than its factorization.

133853244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593505 (or 1593503 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 133853244 is about 11569.4962725263. The cubic root of 133853244 is about 511.5361144616.

The spelling of 133853244 in words is "one hundred thirty-three million, eight hundred fifty-three thousand, two hundred forty-four".