133186748 has 12 divisors (see below), whose sum is σ = 236270160. Its totient is φ = 65680992.

The previous prime is 133186741. The next prime is 133186769. The reversal of 133186748 is 847681331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133186741) 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, 227768 + ... + 228351.

It is an arithmetic number, because the mean of its divisors is an integer number (19689180).

Almost surely, 2^133186748 is an apocalyptic number.

It is an amenable number.

133186748 is a deficient number, since it is larger than the sum of its proper divisors (103083412).

133186748 is a wasteful number, since it uses less digits than its factorization.

133186748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456196 (or 456194 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 133186748 is about 11540.6563071604. The cubic root of 133186748 is about 510.6856700733.

The spelling of 133186748 in words is "one hundred thirty-three million, one hundred eighty-six thousand, seven hundred forty-eight".