133763645 has 16 divisors (see below), whose sum is σ = 166261248. Its totient is φ = 103246080.

The previous prime is 133763627. The next prime is 133763647. The reversal of 133763645 is 546367331.

It is a happy number.

It is not a de Polignac number, because 133763645 - 2¹⁴ = 133747261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133763599 and 133763608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133763647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12677 + ... + 20693.

It is an arithmetic number, because the mean of its divisors is an integer number (10391328).

Almost surely, 2^133763645 is an apocalyptic number.

It is an amenable number.

133763645 is a deficient number, since it is larger than the sum of its proper divisors (32497603).

133763645 is an equidigital number, since it uses as much as digits as its factorization.

133763645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8140.

The product of its digits is 136080, while the sum is 38.

The square root of 133763645 is about 11565.6234159685. The cubic root of 133763645 is about 511.4219512349.

The spelling of 133763645 in words is "one hundred thirty-three million, seven hundred sixty-three thousand, six hundred forty-five".