102189037 has 2 divisors, whose sum is σ = 102189038. Its totient is φ = 102189036.

The previous prime is 102189013. The next prime is 102189041. The reversal of 102189037 is 730981201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89472681 + 12716356 = 9459^2 + 3566^2 .

It is a cyclic number.

It is not a de Polignac number, because 102189037 - 2¹⁵ = 102156269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102189067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51094518 + 51094519.

It is an arithmetic number, because the mean of its divisors is an integer number (51094519).

Almost surely, 2^102189037 is an apocalyptic number.

It is an amenable number.

102189037 is a deficient number, since it is larger than the sum of its proper divisors (1).

102189037 is an equidigital number, since it uses as much as digits as its factorization.

102189037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 102189037 is about 10108.8593322887. The cubic root of 102189037 is about 467.5213362106.

The spelling of 102189037 in words is "one hundred two million, one hundred eighty-nine thousand, thirty-seven".