243142967 has 2 divisors, whose sum is σ = 243142968. Its totient is φ = 243142966.

The previous prime is 243142937. The next prime is 243142987. The reversal of 243142967 is 769241342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243142967 - 2⁶ = 243142903 is a prime.

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 243142967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243142937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121571483 + 121571484.

It is an arithmetic number, because the mean of its divisors is an integer number (121571484).

Almost surely, 2^243142967 is an apocalyptic number.

243142967 is a deficient number, since it is larger than the sum of its proper divisors (1).

243142967 is an equidigital number, since it uses as much as digits as its factorization.

243142967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 243142967 is about 15593.0422624964. The cubic root of 243142967 is about 624.1475028999.

The spelling of 243142967 in words is "two hundred forty-three million, one hundred forty-two thousand, nine hundred sixty-seven".