102089149 has 2 divisors, whose sum is σ = 102089150. Its totient is φ = 102089148.

The previous prime is 102089069. The next prime is 102089153. The reversal of 102089149 is 941980201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101707225 + 381924 = 10085^2 + 618^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102089149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102089159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51044574 + 51044575.

It is an arithmetic number, because the mean of its divisors is an integer number (51044575).

Almost surely, 2^102089149 is an apocalyptic number.

It is an amenable number.

102089149 is a deficient number, since it is larger than the sum of its proper divisors (1).

102089149 is an equidigital number, since it uses as much as digits as its factorization.

102089149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 102089149 is about 10103.9175075809. The cubic root of 102089149 is about 467.3689552346.

The spelling of 102089149 in words is "one hundred two million, eighty-nine thousand, one hundred forty-nine".