243619142 has 64 divisors (see below), whose sum is σ = 425779200. Its totient is φ = 103731840.

The previous prime is 243619141. The next prime is 243619157. The reversal of 243619142 is 241916342.

It is a junction number, because it is equal to n+sod(n) for n = 243619099 and 243619108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243619141) 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 31 ways as a sum of consecutive naturals, for example, 2234984 + ... + 2235092.

It is an arithmetic number, because the mean of its divisors is an integer number (6652800).

Almost surely, 2^243619142 is an apocalyptic number.

243619142 is a deficient number, since it is larger than the sum of its proper divisors (182160058).

243619142 is a wasteful number, since it uses less digits than its factorization.

243619142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261.

The product of its digits is 10368, while the sum is 32.

The square root of 243619142 is about 15608.3036233923. The cubic root of 243619142 is about 624.5546839585.

The spelling of 243619142 in words is "two hundred forty-three million, six hundred nineteen thousand, one hundred forty-two".