238512997 has 4 divisors (see below), whose sum is σ = 238614336. Its totient is φ = 238411660.

The previous prime is 238512991. The next prime is 238513003. The reversal of 238512997 is 799215832.

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 an interprime number because it is at equal distance from previous prime (238512991) and next prime (238513003).

It is a cyclic number.

It is not a de Polignac number, because 238512997 - 2¹¹ = 238510949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238512991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47053 + ... + 51874.

It is an arithmetic number, because the mean of its divisors is an integer number (59653584).

Almost surely, 2^238512997 is an apocalyptic number.

It is an amenable number.

238512997 is a deficient number, since it is larger than the sum of its proper divisors (101339).

238512997 is an equidigital number, since it uses as much as digits as its factorization.

238512997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101338.

The product of its digits is 272160, while the sum is 46.

The square root of 238512997 is about 15443.8659991597. The cubic root of 238512997 is about 620.1603790791.

The spelling of 238512997 in words is "two hundred thirty-eight million, five hundred twelve thousand, nine hundred ninety-seven".