502543157 has 2 divisors, whose sum is σ = 502543158. Its totient is φ = 502543156.

The previous prime is 502543147. The next prime is 502543199. The reversal of 502543157 is 751345205.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 423083761 + 79459396 = 20569^2 + 8914^2 .

It is a cyclic number.

It is not a de Polignac number, because 502543157 - 2¹⁰ = 502542133 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (502543147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251271578 + 251271579.

It is an arithmetic number, because the mean of its divisors is an integer number (251271579).

Almost surely, 2^502543157 is an apocalyptic number.

It is an amenable number.

502543157 is a deficient number, since it is larger than the sum of its proper divisors (1).

502543157 is an equidigital number, since it uses as much as digits as its factorization.

502543157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 502543157 is about 22417.4743671092. The cubic root of 502543157 is about 795.0439209415.

The spelling of 502543157 in words is "five hundred two million, five hundred forty-three thousand, one hundred fifty-seven".