133339978 has 16 divisors (see below), whose sum is σ = 203048640. Its totient is φ = 65663136.

The previous prime is 133339963. The next prime is 133340003. The reversal of 133339978 is 879933331.

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, 49051 + ... + 51697.

It is an arithmetic number, because the mean of its divisors is an integer number (12690540).

Almost surely, 2^133339978 is an apocalyptic number.

133339978 is a deficient number, since it is larger than the sum of its proper divisors (69708662).

133339978 is a wasteful number, since it uses less digits than its factorization.

133339978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3021.

The product of its digits is 367416, while the sum is 46.

The square root of 133339978 is about 11547.2931027146. The cubic root of 133339978 is about 510.8814412393.

The spelling of 133339978 in words is "one hundred thirty-three million, three hundred thirty-nine thousand, nine hundred seventy-eight".