243142119 has 36 divisors (see below), whose sum is σ = 399399000. Its totient is φ = 142259040.

The previous prime is 243142103. The next prime is 243142169. The reversal of 243142119 is 911241342.

It is a happy number.

It is not a de Polignac number, because 243142119 - 2⁴ = 243142103 is a prime.

It is a super-2 number, since 2×243142119² = 118236180063620322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243142092 and 243142101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243142169) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 27732 + ... + 35430.

Almost surely, 2^243142119 is an apocalyptic number.

243142119 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

243142119 is a deficient number, since it is larger than the sum of its proper divisors (156256881).

243142119 is a wasteful number, since it uses less digits than its factorization.

243142119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7756 (or 7742 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 243142119 is about 15593.0150708578. The cubic root of 243142119 is about 624.1467772943.

The spelling of 243142119 in words is "two hundred forty-three million, one hundred forty-two thousand, one hundred nineteen".