238136641 has 4 divisors (see below), whose sum is σ = 248490432. Its totient is φ = 227782852.

The previous prime is 238136621. The next prime is 238136653. The reversal of 238136641 is 146631832.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 238136641 - 2⁵ = 238136609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238136597 and 238136606.

It is not an unprimeable number, because it can be changed into a prime (238136621) 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, 5176861 + ... + 5176906.

It is an arithmetic number, because the mean of its divisors is an integer number (62122608).

Almost surely, 2^238136641 is an apocalyptic number.

It is an amenable number.

238136641 is a deficient number, since it is larger than the sum of its proper divisors (10353791).

238136641 is a wasteful number, since it uses less digits than its factorization.

238136641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10353790.

The product of its digits is 20736, while the sum is 34.

The square root of 238136641 is about 15431.6765453401. The cubic root of 238136641 is about 619.8340181769.

The spelling of 238136641 in words is "two hundred thirty-eight million, one hundred thirty-six thousand, six hundred forty-one".