234651643 has 2 divisors, whose sum is σ = 234651644. Its totient is φ = 234651642.

The previous prime is 234651611. The next prime is 234651647. The reversal of 234651643 is 346156432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 234651643 - 2⁵ = 234651611 is a prime.

It is a super-2 number, since 2×234651643² = 110122787125198898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 234651599 and 234651608.

It is not a weakly prime, because it can be changed into another prime (234651647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117325821 + 117325822.

It is an arithmetic number, because the mean of its divisors is an integer number (117325822).

Almost surely, 2^234651643 is an apocalyptic number.

234651643 is a deficient number, since it is larger than the sum of its proper divisors (1).

234651643 is an equidigital number, since it uses as much as digits as its factorization.

234651643 is an odious number, because the sum of its binary digits is odd.

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

The square root of 234651643 is about 15318.3433503757. The cubic root of 234651643 is about 616.7955046445.

The spelling of 234651643 in words is "two hundred thirty-four million, six hundred fifty-one thousand, six hundred forty-three".