102178093 has 2 divisors, whose sum is σ = 102178094. Its totient is φ = 102178092.

The previous prime is 102178073. The next prime is 102178099. The reversal of 102178093 is 390871201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80676324 + 21501769 = 8982^2 + 4637^2 .

It is a cyclic number.

It is not a de Polignac number, because 102178093 - 2⁵ = 102178061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102178099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51089046 + 51089047.

It is an arithmetic number, because the mean of its divisors is an integer number (51089047).

Almost surely, 2^102178093 is an apocalyptic number.

It is an amenable number.

102178093 is a deficient number, since it is larger than the sum of its proper divisors (1).

102178093 is an equidigital number, since it uses as much as digits as its factorization.

102178093 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 102178093 is about 10108.3180104308. The cubic root of 102178093 is about 467.5046457830.

The spelling of 102178093 in words is "one hundred two million, one hundred seventy-eight thousand, ninety-three".