203245157 has 2 divisors, whose sum is σ = 203245158. Its totient is φ = 203245156.

The previous prime is 203245153. The next prime is 203245177. The reversal of 203245157 is 751542302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202606756 + 638401 = 14234^2 + 799^2 .

It is a cyclic number.

It is not a de Polignac number, because 203245157 - 2² = 203245153 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203245153) 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 as a sum of consecutive naturals, namely, 101622578 + 101622579.

It is an arithmetic number, because the mean of its divisors is an integer number (101622579).

Almost surely, 2^203245157 is an apocalyptic number.

It is an amenable number.

203245157 is a deficient number, since it is larger than the sum of its proper divisors (1).

203245157 is an equidigital number, since it uses as much as digits as its factorization.

203245157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 203245157 is about 14256.4075769459. The cubic root of 203245157 is about 587.9495585481.

Adding to 203245157 its reverse (751542302), we get a palindrome (954787459).

The spelling of 203245157 in words is "two hundred three million, two hundred forty-five thousand, one hundred fifty-seven".