133507938 has 16 divisors (see below), whose sum is σ = 276223680. Its totient is φ = 42968016.

The previous prime is 133507897. The next prime is 133507981. The reversal of 133507938 is 839705331.

It is a junction number, because it is equal to n+sod(n) for n = 133507896 and 133507905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383470 + ... + 383817.

It is an arithmetic number, because the mean of its divisors is an integer number (17263980).

Almost surely, 2^133507938 is an apocalyptic number.

133507938 is an abundant number, since it is smaller than the sum of its proper divisors (142715742).

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

133507938 is a wasteful number, since it uses less digits than its factorization.

133507938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767321.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 133507938 is about 11554.5635140407. The cubic root of 133507938 is about 511.0958596618.

The spelling of 133507938 in words is "one hundred thirty-three million, five hundred seven thousand, nine hundred thirty-eight".