102115240537 has 2 divisors, whose sum is σ = 102115240538. Its totient is φ = 102115240536.

The previous prime is 102115240529. The next prime is 102115240607. The reversal of 102115240537 is 735042511201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60783943936 + 41331296601 = 246544^2 + 203301^2 .

It is a cyclic number.

It is not a de Polignac number, because 102115240537 - 2³ = 102115240529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102115240499 and 102115240508.

It is not a weakly prime, because it can be changed into another prime (102115247537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51057620268 + 51057620269.

It is an arithmetic number, because the mean of its divisors is an integer number (51057620269).

Almost surely, 2^102115240537 is an apocalyptic number.

It is an amenable number.

102115240537 is a deficient number, since it is larger than the sum of its proper divisors (1).

102115240537 is an equidigital number, since it uses as much as digits as its factorization.

102115240537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 31.

Adding to 102115240537 its reverse (735042511201), we get a palindrome (837157751738).

The spelling of 102115240537 in words is "one hundred two billion, one hundred fifteen million, two hundred forty thousand, five hundred thirty-seven".