243929151 has 20 divisors (see below), whose sum is σ = 364809192. Its totient is φ = 162431568.

The previous prime is 243929137. The next prime is 243929183. The reversal of 243929151 is 151929342.

It is not a de Polignac number, because 243929151 - 2¹⁰ = 243928127 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243928151) 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 19 ways as a sum of consecutive naturals, for example, 129720 + ... + 131586.

Almost surely, 2^243929151 is an apocalyptic number.

243929151 is a deficient number, since it is larger than the sum of its proper divisors (120880041).

243929151 is a wasteful number, since it uses less digits than its factorization.

243929151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3492 (or 3483 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 243929151 is about 15618.2313659390. The cubic root of 243929151 is about 624.8194900575.

It can be divided in two parts, 2439291 and 51, that added together give a palindrome (2439342).

The spelling of 243929151 in words is "two hundred forty-three million, nine hundred twenty-nine thousand, one hundred fifty-one".