499974121 has 2 divisors, whose sum is σ = 499974122. Its totient is φ = 499974120.

The previous prime is 499974089. The next prime is 499974149. The reversal of 499974121 is 121479994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 482241600 + 17732521 = 21960^2 + 4211^2 .

It is a cyclic number.

It is not a de Polignac number, because 499974121 - 2⁵ = 499974089 is a prime.

It is not a weakly prime, because it can be changed into another prime (499974191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249987060 + 249987061.

It is an arithmetic number, because the mean of its divisors is an integer number (249987061).

Almost surely, 2^499974121 is an apocalyptic number.

It is an amenable number.

499974121 is a deficient number, since it is larger than the sum of its proper divisors (1).

499974121 is an equidigital number, since it uses as much as digits as its factorization.

499974121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 46.

The square root of 499974121 is about 22360.1010954781. The cubic root of 499974121 is about 793.6868322972.

The spelling of 499974121 in words is "four hundred ninety-nine million, nine hundred seventy-four thousand, one hundred twenty-one".