100206493 has 2 divisors, whose sum is σ = 100206494. Its totient is φ = 100206492.

The previous prime is 100206467. The next prime is 100206499. The reversal of 100206493 is 394602001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60793209 + 39413284 = 7797^2 + 6278^2 .

It is a cyclic number.

It is not a de Polignac number, because 100206493 - 2⁵ = 100206461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100206499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50103246 + 50103247.

It is an arithmetic number, because the mean of its divisors is an integer number (50103247).

Almost surely, 2^100206493 is an apocalyptic number.

It is an amenable number.

100206493 is a deficient number, since it is larger than the sum of its proper divisors (1).

100206493 is an equidigital number, since it uses as much as digits as its factorization.

100206493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 100206493 is about 10010.3193255760. The cubic root of 100206493 is about 464.4781489094.

Adding to 100206493 its reverse (394602001), we get a palindrome (494808494).

The spelling of 100206493 in words is "one hundred million, two hundred six thousand, four hundred ninety-three".