238158829 has 2 divisors, whose sum is σ = 238158830. Its totient is φ = 238158828.

The previous prime is 238158827. The next prime is 238158919. The reversal of 238158829 is 928851832.

238158829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227255625 + 10903204 = 15075^2 + 3302^2 .

It is a cyclic number.

It is not a de Polignac number, because 238158829 - 2¹ = 238158827 is a prime.

Together with 238158827, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238158827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119079414 + 119079415.

It is an arithmetic number, because the mean of its divisors is an integer number (119079415).

Almost surely, 2^238158829 is an apocalyptic number.

It is an amenable number.

238158829 is a deficient number, since it is larger than the sum of its proper divisors (1).

238158829 is an equidigital number, since it uses as much as digits as its factorization.

238158829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 46.

The square root of 238158829 is about 15432.3954394643. The cubic root of 238158829 is about 619.8532682596.

The spelling of 238158829 in words is "two hundred thirty-eight million, one hundred fifty-eight thousand, eight hundred twenty-nine".