424151009 has 2 divisors, whose sum is σ = 424151010. Its totient is φ = 424151008.

The previous prime is 424150957. The next prime is 424151023. The reversal of 424151009 is 900151424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 327718609 + 96432400 = 18103^2 + 9820^2 .

It is a cyclic number.

It is not a de Polignac number, because 424151009 - 2²⁴ = 407373793 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (424151069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212075504 + 212075505.

It is an arithmetic number, because the mean of its divisors is an integer number (212075505).

Almost surely, 2^424151009 is an apocalyptic number.

It is an amenable number.

424151009 is a deficient number, since it is larger than the sum of its proper divisors (1).

424151009 is an equidigital number, since it uses as much as digits as its factorization.

424151009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 424151009 is about 20594.9267782141. The cubic root of 424151009 is about 751.3463278298.

The spelling of 424151009 in words is "four hundred twenty-four million, one hundred fifty-one thousand, nine".