521412299 has 2 divisors, whose sum is σ = 521412300. Its totient is φ = 521412298.

The previous prime is 521412271. The next prime is 521412317. The reversal of 521412299 is 992214125.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 521412299 - 2⁸ = 521412043 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (521412499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260706149 + 260706150.

It is an arithmetic number, because the mean of its divisors is an integer number (260706150).

Almost surely, 2^521412299 is an apocalyptic number.

521412299 is a deficient number, since it is larger than the sum of its proper divisors (1).

521412299 is an equidigital number, since it uses as much as digits as its factorization.

521412299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 35.

The square root of 521412299 is about 22834.4542084982. The cubic root of 521412299 is about 804.8725022155.

The spelling of 521412299 in words is "five hundred twenty-one million, four hundred twelve thousand, two hundred ninety-nine".