133450785 has 48 divisors (see below), whose sum is σ = 250867344. Its totient is φ = 65235456.

The previous prime is 133450781. The next prime is 133450831. The reversal of 133450785 is 587054331.

133450785 is a `hidden beast` number, since 133 + 450 + 78 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 463761 + 132987024 = 681^2 + 11532^2 .

It is not a de Polignac number, because 133450785 - 2² = 133450781 is a prime.

It is a super-2 number, since 2×133450785² = 35618224034232450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133450781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 91119 + ... + 92571.

It is an arithmetic number, because the mean of its divisors is an integer number (5226403).

Almost surely, 2^133450785 is an apocalyptic number.

133450785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133450785 is a deficient number, since it is larger than the sum of its proper divisors (117416559).

133450785 is a wasteful number, since it uses less digits than its factorization.

133450785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634 (or 1631 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 133450785 is about 11552.0900706322. The cubic root of 133450785 is about 511.0229181041.

The spelling of 133450785 in words is "one hundred thirty-three million, four hundred fifty thousand, seven hundred eighty-five".