133434786 has 16 divisors (see below), whose sum is σ = 272548224. Its totient is φ = 43531824.

The previous prime is 133434781. The next prime is 133434793. The reversal of 133434786 is 687434331.

It is a super-2 number, since 2×133434786² = 35609684229731592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133434781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236305 + ... + 236868.

It is an arithmetic number, because the mean of its divisors is an integer number (17034264).

Almost surely, 2^133434786 is an apocalyptic number.

133434786 is an abundant number, since it is smaller than the sum of its proper divisors (139113438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133434786 is a wasteful number, since it uses less digits than its factorization.

133434786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473225.

The product of its digits is 145152, while the sum is 39.

The square root of 133434786 is about 11551.3975777825. The cubic root of 133434786 is about 511.0024956380.

The spelling of 133434786 in words is "one hundred thirty-three million, four hundred thirty-four thousand, seven hundred eighty-six".