238148101 has 4 divisors (see below), whose sum is σ = 238461804. Its totient is φ = 237834400.

The previous prime is 238148093. The next prime is 238148111. The reversal of 238148101 is 101841832.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51825601 + 186322500 = 7199^2 + 13650^2 .

It is a cyclic number.

It is not a de Polignac number, because 238148101 - 2³ = 238148093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 238148101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238148111) 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 in 3 ways as a sum of consecutive naturals, for example, 155710 + ... + 157231.

It is an arithmetic number, because the mean of its divisors is an integer number (59615451).

Almost surely, 2^238148101 is an apocalyptic number.

It is an amenable number.

238148101 is a deficient number, since it is larger than the sum of its proper divisors (313703).

238148101 is an equidigital number, since it uses as much as digits as its factorization.

238148101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313702.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 238148101 is about 15432.0478550321. The cubic root of 238148101 is about 619.8439609054.

Adding to 238148101 its reverse (101841832), we get a palindrome (339989933).

The spelling of 238148101 in words is "two hundred thirty-eight million, one hundred forty-eight thousand, one hundred one".