133263623 has 2 divisors, whose sum is σ = 133263624. Its totient is φ = 133263622.

The previous prime is 133263619. The next prime is 133263631. The reversal of 133263623 is 326362331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133263623 - 2² = 133263619 is a prime.

It is a super-2 number, since 2×133263623² = 35518386430172258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133263643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66631811 + 66631812.

It is an arithmetic number, because the mean of its divisors is an integer number (66631812).

Almost surely, 2^133263623 is an apocalyptic number.

133263623 is a deficient number, since it is larger than the sum of its proper divisors (1).

133263623 is an equidigital number, since it uses as much as digits as its factorization.

133263623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 29.

The square root of 133263623 is about 11543.9864431660. The cubic root of 133263623 is about 510.7839065983.

The spelling of 133263623 in words is "one hundred thirty-three million, two hundred sixty-three thousand, six hundred twenty-three".