406134251 has 2 divisors, whose sum is σ = 406134252. Its totient is φ = 406134250.

The previous prime is 406134227. The next prime is 406134263. The reversal of 406134251 is 152431604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 406134251 - 2¹⁸ = 405872107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 406134251.

It is not a weakly prime, because it can be changed into another prime (406134221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203067125 + 203067126.

It is an arithmetic number, because the mean of its divisors is an integer number (203067126).

Almost surely, 2^406134251 is an apocalyptic number.

406134251 is a deficient number, since it is larger than the sum of its proper divisors (1).

406134251 is an equidigital number, since it uses as much as digits as its factorization.

406134251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 406134251 is about 20152.7727868896. The cubic root of 406134251 is about 740.5536707368.

Adding to 406134251 its reverse (152431604), we get a palindrome (558565855).

The spelling of 406134251 in words is "four hundred six million, one hundred thirty-four thousand, two hundred fifty-one".