133197950 has 24 divisors (see below), whose sum is σ = 250891680. Its totient is φ = 52603200.

The previous prime is 133197947. The next prime is 133197997. The reversal of 133197950 is 59791331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12911 + ... + 20810.

It is an arithmetic number, because the mean of its divisors is an integer number (10453820).

Almost surely, 2^133197950 is an apocalyptic number.

133197950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133197950 is a deficient number, since it is larger than the sum of its proper divisors (117693730).

133197950 is a wasteful number, since it uses less digits than its factorization.

133197950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33812 (or 33807 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 38.

The square root of 133197950 is about 11541.1416246401. The cubic root of 133197950 is about 510.6999871646.

The spelling of 133197950 in words is "one hundred thirty-three million, one hundred ninety-seven thousand, nine hundred fifty".