133764965 has 8 divisors (see below), whose sum is σ = 166053240. Its totient is φ = 103321792.

The previous prime is 133764947. The next prime is 133764979. The reversal of 133764965 is 569467331.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 662596 + 133102369 = 814^2 + 11537^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 133764965 - 2¹⁶ = 133699429 is a prime.

It is a super-2 number, since 2×133764965² = 35786131722902450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461114 + ... + 461403.

It is an arithmetic number, because the mean of its divisors is an integer number (20756655).

Almost surely, 2^133764965 is an apocalyptic number.

It is an amenable number.

133764965 is a deficient number, since it is larger than the sum of its proper divisors (32288275).

133764965 is an equidigital number, since it uses as much as digits as its factorization.

133764965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922551.

The product of its digits is 408240, while the sum is 44.

The square root of 133764965 is about 11565.6804814935. The cubic root of 133764965 is about 511.4236334925.

The spelling of 133764965 in words is "one hundred thirty-three million, seven hundred sixty-four thousand, nine hundred sixty-five".