153243253 has 4 divisors (see below), whose sum is σ = 162257580. Its totient is φ = 144228928.

The previous prime is 153243247. The next prime is 153243269. The reversal of 153243253 is 352342351.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 105329169 + 47914084 = 10263^2 + 6922^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153243253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153243553) 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 3 ways as a sum of consecutive naturals, for example, 4507138 + ... + 4507171.

It is an arithmetic number, because the mean of its divisors is an integer number (40564395).

Almost surely, 2^153243253 is an apocalyptic number.

It is an amenable number.

153243253 is a deficient number, since it is larger than the sum of its proper divisors (9014327).

153243253 is an equidigital number, since it uses as much as digits as its factorization.

153243253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9014326.

The product of its digits is 10800, while the sum is 28.

The square root of 153243253 is about 12379.1458913772. The cubic root of 153243253 is about 535.1314237352.

The spelling of 153243253 in words is "one hundred fifty-three million, two hundred forty-three thousand, two hundred fifty-three".