133387848 has 96 divisors (see below), whose sum is σ = 417324960. Its totient is φ = 38039040.

The previous prime is 133387829. The next prime is 133387853. The reversal of 133387848 is 848783331.

It is a super-2 number, since 2×133387848² = 35584635988142208, which contains 22 as substring.

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, 8511 + ... + 18417.

It is an arithmetic number, because the mean of its divisors is an integer number (4347135).

Almost surely, 2^133387848 is an apocalyptic number.

133387848 is a gapful number since it is divisible by the number (18) 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 133387848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208662480).

133387848 is an abundant number, since it is smaller than the sum of its proper divisors (283937112).

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

133387848 is a wasteful number, since it uses less digits than its factorization.

133387848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9947 (or 9940 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 133387848 is about 11549.3656968684. The cubic root of 133387848 is about 510.9425706143.

The spelling of 133387848 in words is "one hundred thirty-three million, three hundred eighty-seven thousand, eight hundred forty-eight".