133450019 has 2 divisors, whose sum is σ = 133450020. Its totient is φ = 133450018.

The previous prime is 133450007. The next prime is 133450021. The reversal of 133450019 is 910054331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133450019 - 2⁴ = 133450003 is a prime.

It is a super-2 number, since 2×133450019² = 35617815142200722, which contains 22 as substring.

Together with 133450021, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133450019.

It is not a weakly prime, because it can be changed into another prime (133450519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66725009 + 66725010.

It is an arithmetic number, because the mean of its divisors is an integer number (66725010).

Almost surely, 2^133450019 is an apocalyptic number.

133450019 is a deficient number, since it is larger than the sum of its proper divisors (1).

133450019 is an equidigital number, since it uses as much as digits as its factorization.

133450019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 133450019 is about 11552.0569164110. The cubic root of 133450019 is about 511.0219403546.

The spelling of 133450019 in words is "one hundred thirty-three million, four hundred fifty thousand, nineteen".