472206149 has 2 divisors, whose sum is σ = 472206150. Its totient is φ = 472206148.

The previous prime is 472206131. The next prime is 472206157. The reversal of 472206149 is 941602274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 433056100 + 39150049 = 20810^2 + 6257^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472206149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_24966305 and since 472206149 and 24966305 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472206109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236103074 + 236103075.

It is an arithmetic number, because the mean of its divisors is an integer number (236103075).

Almost surely, 2^472206149 is an apocalyptic number.

It is an amenable number.

472206149 is a deficient number, since it is larger than the sum of its proper divisors (1).

472206149 is an equidigital number, since it uses as much as digits as its factorization.

472206149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 472206149 is about 21730.3048529007. The cubic root of 472206149 is about 778.7126194047.

The spelling of 472206149 in words is "four hundred seventy-two million, two hundred six thousand, one hundred forty-nine".