238806145 has 8 divisors (see below), whose sum is σ = 286986240. Its totient is φ = 190765680.

The previous prime is 238806137. The next prime is 238806149. The reversal of 238806145 is 541608832.

It is a happy number.

238806145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 238806145 - 2³ = 238806137 is a prime.

It is a super-2 number, since 2×238806145² = 114056749779522050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (238806149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31105 + ... + 38014.

It is an arithmetic number, because the mean of its divisors is an integer number (35873280).

Almost surely, 2^238806145 is an apocalyptic number.

It is an amenable number.

238806145 is a deficient number, since it is larger than the sum of its proper divisors (48180095).

238806145 is an equidigital number, since it uses as much as digits as its factorization.

238806145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69815.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 238806145 is about 15453.3538430983. The cubic root of 238806145 is about 620.4143475519.

The spelling of 238806145 in words is "two hundred thirty-eight million, eight hundred six thousand, one hundred forty-five".