133640034 has 96 divisors (see below), whose sum is σ = 316016640. Its totient is φ = 37346400.

The previous prime is 133640029. The next prime is 133640057. The reversal of 133640034 is 430046331.

It is a junction number, because it is equal to n+sod(n) for n = 133639986 and 133640013.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1691607 + ... + 1691685.

It is an arithmetic number, because the mean of its divisors is an integer number (3291840).

Almost surely, 2^133640034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133640034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158008320).

133640034 is an abundant number, since it is smaller than the sum of its proper divisors (182376606).

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

133640034 is a wasteful number, since it uses less digits than its factorization.

133640034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 133640034 is about 11560.2782838477. The cubic root of 133640034 is about 511.2643676556.

Adding to 133640034 its reverse (430046331), we get a palindrome (563686365).

The spelling of 133640034 in words is "one hundred thirty-three million, six hundred forty thousand, thirty-four".