133965373 has 2 divisors, whose sum is σ = 133965374. Its totient is φ = 133965372.

The previous prime is 133965367. The next prime is 133965443. The reversal of 133965373 is 373569331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109788484 + 24176889 = 10478^2 + 4917^2 .

It is a cyclic number.

It is not a de Polignac number, because 133965373 - 2¹³ = 133957181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133965323) by changing a digit.

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 as a sum of consecutive naturals, namely, 66982686 + 66982687.

It is an arithmetic number, because the mean of its divisors is an integer number (66982687).

Almost surely, 2^133965373 is an apocalyptic number.

It is an amenable number.

133965373 is a deficient number, since it is larger than the sum of its proper divisors (1).

133965373 is an equidigital number, since it uses as much as digits as its factorization.

133965373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153090, while the sum is 40.

The square root of 133965373 is about 11574.3411475557. The cubic root of 133965373 is about 511.6789127045.

It can be divided in two parts, 13396 and 5373, that added together give a square (18769 = 137²).

The spelling of 133965373 in words is "one hundred thirty-three million, nine hundred sixty-five thousand, three hundred seventy-three".