102141917 has 2 divisors, whose sum is σ = 102141918. Its totient is φ = 102141916.

The previous prime is 102141911. The next prime is 102141953. The reversal of 102141917 is 719141201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86229796 + 15912121 = 9286^2 + 3989^2 .

It is a cyclic number.

It is not a de Polignac number, because 102141917 - 2¹⁸ = 101879773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102141911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51070958 + 51070959.

It is an arithmetic number, because the mean of its divisors is an integer number (51070959).

Almost surely, 2^102141917 is an apocalyptic number.

It is an amenable number.

102141917 is a deficient number, since it is larger than the sum of its proper divisors (1).

102141917 is an equidigital number, since it uses as much as digits as its factorization.

102141917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 102141917 is about 10106.5284346308. The cubic root of 102141917 is about 467.4494661651.

The spelling of 102141917 in words is "one hundred two million, one hundred forty-one thousand, nine hundred seventeen".