233303157 has 12 divisors (see below), whose sum is σ = 339257100. Its totient is φ = 154490688.

The previous prime is 233303153. The next prime is 233303197. The reversal of 233303157 is 751303332.

It can be written as a sum of positive squares in 2 ways, for example, as 83338641 + 149964516 = 9129^2 + 12246^2 .

It is not a de Polignac number, because 233303157 - 2² = 233303153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 233303157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233303153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85648 + ... + 88329.

It is an arithmetic number, because the mean of its divisors is an integer number (28271425).

Almost surely, 2^233303157 is an apocalyptic number.

It is an amenable number.

233303157 is a deficient number, since it is larger than the sum of its proper divisors (105953943).

233303157 is a wasteful number, since it uses less digits than its factorization.

233303157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174132 (or 174129 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 27.

The square root of 233303157 is about 15274.2645322123. The cubic root of 233303157 is about 615.6117094265.

Adding to 233303157 its reverse (751303332), we get a palindrome (984606489).

The spelling of 233303157 in words is "two hundred thirty-three million, three hundred three thousand, one hundred fifty-seven".