133457210 has 8 divisors (see below), whose sum is σ = 240222996. Its totient is φ = 53382880.

The previous prime is 133457189. The next prime is 133457221. The reversal of 133457210 is 12754331.

It can be written as a sum of positive squares in 2 ways, for example, as 126990361 + 6466849 = 11269^2 + 2543^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 133457210.

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, 6672851 + ... + 6672870.

Almost surely, 2^133457210 is an apocalyptic number.

133457210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133457210 is a deficient number, since it is larger than the sum of its proper divisors (106765786).

133457210 is a wasteful number, since it uses less digits than its factorization.

133457210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13345728.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 133457210 is about 11552.3681554909. The cubic root of 133457210 is about 511.0311190539.

The spelling of 133457210 in words is "one hundred thirty-three million, four hundred fifty-seven thousand, two hundred ten".