102223493 has 2 divisors, whose sum is σ = 102223494. Its totient is φ = 102223492.

The previous prime is 102223487. The next prime is 102223507. The reversal of 102223493 is 394322201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99062209 + 3161284 = 9953^2 + 1778^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102223493 is a prime.

It is a super-2 number, since 2×102223493² = 20899285042242098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102223403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51111746 + 51111747.

It is an arithmetic number, because the mean of its divisors is an integer number (51111747).

Almost surely, 2^102223493 is an apocalyptic number.

It is an amenable number.

102223493 is a deficient number, since it is larger than the sum of its proper divisors (1).

102223493 is an equidigital number, since it uses as much as digits as its factorization.

102223493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 102223493 is about 10110.5634363274. The cubic root of 102223493 is about 467.5738764355.

Adding to 102223493 its reverse (394322201), we get a palindrome (496545694).

The spelling of 102223493 in words is "one hundred two million, two hundred twenty-three thousand, four hundred ninety-three".