133849872 has 120 divisors (see below), whose sum is σ = 407307264. Its totient is φ = 40787712.

The previous prime is 133849861. The next prime is 133849883. The reversal of 133849872 is 278948331.

133849872 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (133849861) and next prime (133849883).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237463 + ... + 238025.

Almost surely, 2^133849872 is an apocalyptic number.

133849872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133849872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203653632).

133849872 is an abundant number, since it is smaller than the sum of its proper divisors (273457392).

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

133849872 is a wasteful number, since it uses less digits than its factorization.

133849872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717 (or 708 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 133849872 is about 11569.3505435699. The cubic root of 133849872 is about 511.5318189257.

The spelling of 133849872 in words is "one hundred thirty-three million, eight hundred forty-nine thousand, eight hundred seventy-two".