238149999 has 12 divisors (see below), whose sum is σ = 345473856. Its totient is φ = 158083872.

The previous prime is 238149997. The next prime is 238150051. The reversal of 238149999 is 999941832.

It is not a de Polignac number, because 238149999 - 2¹ = 238149997 is a prime.

It is a super-3 number, since 3×238149999³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238149997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54687 + ... + 58880.

It is an arithmetic number, because the mean of its divisors is an integer number (28789488).

Almost surely, 2^238149999 is an apocalyptic number.

238149999 is a deficient number, since it is larger than the sum of its proper divisors (107323857).

238149999 is a wasteful number, since it uses less digits than its factorization.

238149999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113806 (or 113803 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The square root of 238149999 is about 15432.1093503124. The cubic root of 238149999 is about 619.8456075848.

The spelling of 238149999 in words is "two hundred thirty-eight million, one hundred forty-nine thousand, nine hundred ninety-nine".