133963564 has 48 divisors (see below), whose sum is σ = 279107136. Its totient is φ = 55065600.

The previous prime is 133963517. The next prime is 133963573. The reversal of 133963564 is 465369331.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69072 + ... + 70984.

It is an arithmetic number, because the mean of its divisors is an integer number (5814732).

Almost surely, 2^133963564 is an apocalyptic number.

133963564 is a gapful number since it is divisible by the number (14) 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 133963564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139553568).

133963564 is an abundant number, since it is smaller than the sum of its proper divisors (145143572).

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

133963564 is a wasteful number, since it uses less digits than its factorization.

133963564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026 (or 2024 counting only the distinct ones).

The product of its digits is 174960, while the sum is 40.

The square root of 133963564 is about 11574.2630002951. The cubic root of 133963564 is about 511.6766095439.

The spelling of 133963564 in words is "one hundred thirty-three million, nine hundred sixty-three thousand, five hundred sixty-four".