406254133 has 2 divisors, whose sum is σ = 406254134. Its totient is φ = 406254132.

The previous prime is 406254091. The next prime is 406254137. The reversal of 406254133 is 331452604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 367028964 + 39225169 = 19158^2 + 6263^2 .

It is a cyclic number.

It is not a de Polignac number, because 406254133 - 2¹⁷ = 406123061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406254137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203127066 + 203127067.

It is an arithmetic number, because the mean of its divisors is an integer number (203127067).

Almost surely, 2^406254133 is an apocalyptic number.

It is an amenable number.

406254133 is a deficient number, since it is larger than the sum of its proper divisors (1).

406254133 is an equidigital number, since it uses as much as digits as its factorization.

406254133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 406254133 is about 20155.7468975972. The cubic root of 406254133 is about 740.6265286823.

The spelling of 406254133 in words is "four hundred six million, two hundred fifty-four thousand, one hundred thirty-three".