133345843 has 2 divisors, whose sum is σ = 133345844. Its totient is φ = 133345842.

The previous prime is 133345831. The next prime is 133345853. The reversal of 133345843 is 348543331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133345843 is a prime.

It is a super-2 number, since 2×133345843² = 35562227690761298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133345799 and 133345808.

It is not a weakly prime, because it can be changed into another prime (133345813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66672921 + 66672922.

It is an arithmetic number, because the mean of its divisors is an integer number (66672922).

Almost surely, 2^133345843 is an apocalyptic number.

133345843 is a deficient number, since it is larger than the sum of its proper divisors (1).

133345843 is an equidigital number, since it uses as much as digits as its factorization.

133345843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 34.

The square root of 133345843 is about 11547.5470555439. The cubic root of 133345843 is about 510.8889315553. Note that the first 3 decimals are identical.

The spelling of 133345843 in words is "one hundred thirty-three million, three hundred forty-five thousand, eight hundred forty-three".