234978571 has 2 divisors, whose sum is σ = 234978572. Its totient is φ = 234978570.

The previous prime is 234978451. The next prime is 234978577. The reversal of 234978571 is 175879432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 234978571 - 2⁹ = 234978059 is a prime.

It is not a weakly prime, because it can be changed into another prime (234978577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117489285 + 117489286.

It is an arithmetic number, because the mean of its divisors is an integer number (117489286).

Almost surely, 2^234978571 is an apocalyptic number.

234978571 is a deficient number, since it is larger than the sum of its proper divisors (1).

234978571 is an equidigital number, since it uses as much as digits as its factorization.

234978571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 46.

The square root of 234978571 is about 15329.0107639078. The cubic root of 234978571 is about 617.0818214759.

The spelling of 234978571 in words is "two hundred thirty-four million, nine hundred seventy-eight thousand, five hundred seventy-one".