133448508 has 36 divisors (see below), whose sum is σ = 337912848. Its totient is φ = 44405760.

The previous prime is 133448449. The next prime is 133448509. The reversal of 133448508 is 805844331.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×133448508³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133448509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20185 + ... + 25967.

It is an arithmetic number, because the mean of its divisors is an integer number (9386468).

Almost surely, 2^133448508 is an apocalyptic number.

133448508 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

133448508 is an abundant number, since it is smaller than the sum of its proper divisors (204464340).

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

133448508 is a wasteful number, since it uses less digits than its factorization.

133448508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6434 (or 6429 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 133448508 is about 11551.9915166174. The cubic root of 133448508 is about 511.0200116499.

It can be divided in two parts, 133448 and 508, that added together give a square (133956 = 366²).

The spelling of 133448508 in words is "one hundred thirty-three million, four hundred forty-eight thousand, five hundred eight".