243130029 has 4 divisors (see below), whose sum is σ = 324173376. Its totient is φ = 162086684.

The previous prime is 243130003. The next prime is 243130031. The reversal of 243130029 is 920031342.

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 243130029 - 2¹⁷ = 242998957 is a prime.

It is a super-2 number, since 2×243130029² = 118224422003081682, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 243129990 and 243130008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243130529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40521669 + ... + 40521674.

It is an arithmetic number, because the mean of its divisors is an integer number (81043344).

Almost surely, 2^243130029 is an apocalyptic number.

It is an amenable number.

243130029 is a deficient number, since it is larger than the sum of its proper divisors (81043347).

243130029 is an equidigital number, since it uses as much as digits as its factorization.

243130029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81043346.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 243130029 is about 15592.6273924570. The cubic root of 243130029 is about 624.1364320970.

The spelling of 243130029 in words is "two hundred forty-three million, one hundred thirty thousand, twenty-nine".