100472213 has 2 divisors, whose sum is σ = 100472214. Its totient is φ = 100472212.

The previous prime is 100472191. The next prime is 100472219. The reversal of 100472213 is 312274001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79887844 + 20584369 = 8938^2 + 4537^2 .

It is a cyclic number.

It is not a de Polignac number, because 100472213 - 2⁶ = 100472149 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100472219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50236106 + 50236107.

It is an arithmetic number, because the mean of its divisors is an integer number (50236107).

Almost surely, 2^100472213 is an apocalyptic number.

It is an amenable number.

100472213 is a deficient number, since it is larger than the sum of its proper divisors (1).

100472213 is an equidigital number, since it uses as much as digits as its factorization.

100472213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 100472213 is about 10023.5828424770. The cubic root of 100472213 is about 464.8883425589. Note that the first 3 decimals are identical.

The spelling of 100472213 in words is "one hundred million, four hundred seventy-two thousand, two hundred thirteen".