102115094449 has 2 divisors, whose sum is σ = 102115094450. Its totient is φ = 102115094448.

The previous prime is 102115094381. The next prime is 102115094479. The reversal of 102115094449 is 944490511201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80397767025 + 21717327424 = 283545^2 + 147368^2 .

It is a cyclic number.

It is not a de Polignac number, because 102115094449 - 2²¹ = 102112997297 is a prime.

It is a super-2 number, since 2×102115094449² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102115094479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51057547224 + 51057547225.

It is an arithmetic number, because the mean of its divisors is an integer number (51057547225).

Almost surely, 2^102115094449 is an apocalyptic number.

It is an amenable number.

102115094449 is a deficient number, since it is larger than the sum of its proper divisors (1).

102115094449 is an equidigital number, since it uses as much as digits as its factorization.

102115094449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 102115094449 in words is "one hundred two billion, one hundred fifteen million, ninety-four thousand, four hundred forty-nine".