102245389 has 2 divisors, whose sum is σ = 102245390. Its totient is φ = 102245388.

The previous prime is 102245371. The next prime is 102245399. The reversal of 102245389 is 983542201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62932489 + 39312900 = 7933^2 + 6270^2 .

It is a cyclic number.

It is not a de Polignac number, because 102245389 - 2¹¹ = 102243341 is a prime.

It is a super-2 number, since 2×102245389² = 20908239143522642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102245309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51122694 + 51122695.

It is an arithmetic number, because the mean of its divisors is an integer number (51122695).

Almost surely, 2^102245389 is an apocalyptic number.

It is an amenable number.

102245389 is a deficient number, since it is larger than the sum of its proper divisors (1).

102245389 is an equidigital number, since it uses as much as digits as its factorization.

102245389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 102245389 is about 10111.6462062317. The cubic root of 102245389 is about 467.6072584120.

The spelling of 102245389 in words is "one hundred two million, two hundred forty-five thousand, three hundred eighty-nine".