102530502157 has 2 divisors, whose sum is σ = 102530502158. Its totient is φ = 102530502156.

The previous prime is 102530502101. The next prime is 102530502223. The reversal of 102530502157 is 751205035201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89168529321 + 13361972836 = 298611^2 + 115594^2 .

It is a cyclic number.

It is not a de Polignac number, because 102530502157 - 2²⁷ = 102396284429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102530502757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51265251078 + 51265251079.

It is an arithmetic number, because the mean of its divisors is an integer number (51265251079).

Almost surely, 2^102530502157 is an apocalyptic number.

It is an amenable number.

102530502157 is a deficient number, since it is larger than the sum of its proper divisors (1).

102530502157 is an equidigital number, since it uses as much as digits as its factorization.

102530502157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10500, while the sum is 31.

Adding to 102530502157 its reverse (751205035201), we get a palindrome (853735537358).

The spelling of 102530502157 in words is "one hundred two billion, five hundred thirty million, five hundred two thousand, one hundred fifty-seven".