133941965 has 16 divisors (see below), whose sum is σ = 163137072. Its totient is φ = 105560064.

The previous prime is 133941953. The next prime is 133942007. The reversal of 133941965 is 569149331.

It can be written as a sum of positive squares in 8 ways, for example, as 724201 + 133217764 = 851^2 + 11542^2 .

It is a cyclic number.

It is not a de Polignac number, because 133941965 - 2¹⁶ = 133876429 is a prime.

It is a super-2 number, since 2×133941965² = 35880899976122450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133847 + ... + 134843.

It is an arithmetic number, because the mean of its divisors is an integer number (10196067).

Almost surely, 2^133941965 is an apocalyptic number.

It is an amenable number.

133941965 is a deficient number, since it is larger than the sum of its proper divisors (29195107).

133941965 is an equidigital number, since it uses as much as digits as its factorization.

133941965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376.

The product of its digits is 87480, while the sum is 41.

The square root of 133941965 is about 11573.3299011132. The cubic root of 133941965 is about 511.6491087898.

The spelling of 133941965 in words is "one hundred thirty-three million, nine hundred forty-one thousand, nine hundred sixty-five".