133409672 has 16 divisors (see below), whose sum is σ = 272883600. Its totient is φ = 60640720.

The previous prime is 133409671. The next prime is 133409681. The reversal of 133409672 is 276904331.

It is a super-3 number, since 3×133409672³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (133409671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757922 + ... + 758097.

It is an arithmetic number, because the mean of its divisors is an integer number (17055225).

Almost surely, 2^133409672 is an apocalyptic number.

It is an amenable number.

133409672 is an abundant number, since it is smaller than the sum of its proper divisors (139473928).

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

133409672 is a wasteful number, since it uses less digits than its factorization.

133409672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516036 (or 1516032 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 133409672 is about 11550.3104720176. The cubic root of 133409672 is about 510.9704347282.

The spelling of 133409672 in words is "one hundred thirty-three million, four hundred nine thousand, six hundred seventy-two".