133263373 has 2 divisors, whose sum is σ = 133263374. Its totient is φ = 133263372.

The previous prime is 133263367. The next prime is 133263401. The reversal of 133263373 is 373362331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123609924 + 9653449 = 11118^2 + 3107^2 .

It is a cyclic number.

It is not a de Polignac number, because 133263373 - 2⁵ = 133263341 is a prime.

It is a super-3 number, since 3×133263373³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133263673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66631686 + 66631687.

It is an arithmetic number, because the mean of its divisors is an integer number (66631687).

Almost surely, 2^133263373 is an apocalyptic number.

It is an amenable number.

133263373 is a deficient number, since it is larger than the sum of its proper divisors (1).

133263373 is an equidigital number, since it uses as much as digits as its factorization.

133263373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 31.

The square root of 133263373 is about 11543.9756150124. The cubic root of 133263373 is about 510.7835871912.

The spelling of 133263373 in words is "one hundred thirty-three million, two hundred sixty-three thousand, three hundred seventy-three".