152440243 has 8 divisors (see below), whose sum is σ = 155746800. Its totient is φ = 149149728.

The previous prime is 152440231. The next prime is 152440271. The reversal of 152440243 is 342044251.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152440243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152440643) 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 7 ways as a sum of consecutive naturals, for example, 16293 + ... + 23881.

It is an arithmetic number, because the mean of its divisors is an integer number (19468350).

Almost surely, 2^152440243 is an apocalyptic number.

152440243 is a deficient number, since it is larger than the sum of its proper divisors (3306557).

152440243 is an equidigital number, since it uses as much as digits as its factorization.

152440243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8021.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 152440243 is about 12346.6693079551. The cubic root of 152440243 is about 534.1950722077.

Adding to 152440243 its reverse (342044251), we get a palindrome (494484494).

The spelling of 152440243 in words is "one hundred fifty-two million, four hundred forty thousand, two hundred forty-three".