133978604 has 12 divisors (see below), whose sum is σ = 234546984. Its totient is φ = 66965184.

The previous prime is 133978571. The next prime is 133978609. The reversal of 133978604 is 406879331.

It is not an unprimeable number, because it can be changed into a prime (133978609) 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, 13487 + ... + 21209.

It is an arithmetic number, because the mean of its divisors is an integer number (19545582).

Almost surely, 2^133978604 is an apocalyptic number.

It is an amenable number.

133978604 is a deficient number, since it is larger than the sum of its proper divisors (100568380).

133978604 is a wasteful number, since it uses less digits than its factorization.

133978604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12064 (or 12062 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 133978604 is about 11574.9126994548. The cubic root of 133978604 is about 511.6957573579.

The spelling of 133978604 in words is "one hundred thirty-three million, nine hundred seventy-eight thousand, six hundred four".