243025041 has 32 divisors (see below), whose sum is σ = 375717888. Its totient is φ = 136866240.

The previous prime is 243025001. The next prime is 243025049. The reversal of 243025041 is 140520342.

It is not a de Polignac number, because 243025041 - 2²¹ = 240927889 is a prime.

It is a super-2 number, since 2×243025041² = 118122341106103362, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 243024999 and 243025017.

It is not an unprimeable number, because it can be changed into a prime (243025049) 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, 781276 + ... + 781586.

It is an arithmetic number, because the mean of its divisors is an integer number (11741184).

Almost surely, 2^243025041 is an apocalyptic number.

243025041 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

243025041 is a deficient number, since it is larger than the sum of its proper divisors (132692847).

243025041 is a wasteful number, since it uses less digits than its factorization.

243025041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 243025041 is about 15589.2604378784. The cubic root of 243025041 is about 624.0465813147.

Subtracting from 243025041 its product of nonzero digits (960), we obtain a triangular number (243024081 = T₂₂₀₄₆).

Adding to 243025041 its reverse (140520342), we get a palindrome (383545383).

The spelling of 243025041 in words is "two hundred forty-three million, twenty-five thousand, forty-one".