102119729 has 2 divisors, whose sum is σ = 102119730. Its totient is φ = 102119728.

The previous prime is 102119669. The next prime is 102119749. The reversal of 102119729 is 927911201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98406400 + 3713329 = 9920^2 + 1927^2 .

It is a cyclic number.

It is not a de Polignac number, because 102119729 - 2²⁴ = 85342513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102119695 and 102119704.

It is not a weakly prime, because it can be changed into another prime (102119749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51059864 + 51059865.

It is an arithmetic number, because the mean of its divisors is an integer number (51059865).

Almost surely, 2^102119729 is an apocalyptic number.

It is an amenable number.

102119729 is a deficient number, since it is larger than the sum of its proper divisors (1).

102119729 is an equidigital number, since it uses as much as digits as its factorization.

102119729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 32.

The square root of 102119729 is about 10105.4306687048. The cubic root of 102119729 is about 467.4156161383.

The spelling of 102119729 in words is "one hundred two million, one hundred nineteen thousand, seven hundred twenty-nine".