133451323 has 2 divisors, whose sum is σ = 133451324. Its totient is φ = 133451322.

The previous prime is 133451299. The next prime is 133451369. The reversal of 133451323 is 323154331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133451323 - 2¹⁷ = 133320251 is a prime.

It is a super-2 number, since 2×133451323² = 35618511220900658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133451393) 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, 66725661 + 66725662.

It is an arithmetic number, because the mean of its divisors is an integer number (66725662).

Almost surely, 2^133451323 is an apocalyptic number.

133451323 is a deficient number, since it is larger than the sum of its proper divisors (1).

133451323 is an equidigital number, since it uses as much as digits as its factorization.

133451323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 25.

The square root of 133451323 is about 11552.1133564383. The cubic root of 133451323 is about 511.0236048241.

The spelling of 133451323 in words is "one hundred thirty-three million, four hundred fifty-one thousand, three hundred twenty-three".