153042243 has 4 divisors (see below), whose sum is σ = 204056328. Its totient is φ = 102028160.

The previous prime is 153042209. The next prime is 153042259. The reversal of 153042243 is 342240351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342240351 = 3 ⋅114080117.

It is a cyclic number.

It is not a de Polignac number, because 153042243 - 2¹² = 153038147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (153040243) 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, 25507038 + ... + 25507043.

It is an arithmetic number, because the mean of its divisors is an integer number (51014082).

Almost surely, 2^153042243 is an apocalyptic number.

153042243 is a deficient number, since it is larger than the sum of its proper divisors (51014085).

153042243 is an equidigital number, since it uses as much as digits as its factorization.

153042243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51014084.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 153042243 is about 12371.0243310730. The cubic root of 153042243 is about 534.8973431006.

Adding to 153042243 its reverse (342240351), we get a palindrome (495282594).

The spelling of 153042243 in words is "one hundred fifty-three million, forty-two thousand, two hundred forty-three".