233145019 has 2 divisors, whose sum is σ = 233145020. Its totient is φ = 233145018.

The previous prime is 233145013. The next prime is 233145041. The reversal of 233145019 is 910541332.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 233145019 - 2⁹ = 233144507 is a prime.

It is a super-2 number, since 2×233145019² = 108713199769020722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (233145013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116572509 + 116572510.

It is an arithmetic number, because the mean of its divisors is an integer number (116572510).

Almost surely, 2^233145019 is an apocalyptic number.

233145019 is a deficient number, since it is larger than the sum of its proper divisors (1).

233145019 is an equidigital number, since it uses as much as digits as its factorization.

233145019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 233145019 is about 15269.0870388508. The cubic root of 233145019 is about 615.4725862791.

The spelling of 233145019 in words is "two hundred thirty-three million, one hundred forty-five thousand, nineteen".