133208812 has 12 divisors (see below), whose sum is σ = 254307816. Its totient is φ = 60549440.

The previous prime is 133208749. The next prime is 133208833. The reversal of 133208812 is 218802331.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1513693 + ... + 1513780.

It is an arithmetic number, because the mean of its divisors is an integer number (21192318).

Almost surely, 2^133208812 is an apocalyptic number.

It is an amenable number.

133208812 is a deficient number, since it is larger than the sum of its proper divisors (121099004).

133208812 is a wasteful number, since it uses less digits than its factorization.

133208812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3027488 (or 3027486 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 133208812 is about 11541.6121924106. The cubic root of 133208812 is about 510.7138689410.

The spelling of 133208812 in words is "one hundred thirty-three million, two hundred eight thousand, eight hundred twelve".