499122251 has 2 divisors, whose sum is σ = 499122252. Its totient is φ = 499122250.

The previous prime is 499122209. The next prime is 499122257. The reversal of 499122251 is 152221994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499122251 - 2¹⁸ = 498860107 is a prime.

It is not a weakly prime, because it can be changed into another prime (499122257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249561125 + 249561126.

It is an arithmetic number, because the mean of its divisors is an integer number (249561126).

Almost surely, 2^499122251 is an apocalyptic number.

499122251 is a deficient number, since it is larger than the sum of its proper divisors (1).

499122251 is an equidigital number, since it uses as much as digits as its factorization.

499122251 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 499122251 is about 22341.0440892990. The cubic root of 499122251 is about 793.2358073784.

The spelling of 499122251 in words is "four hundred ninety-nine million, one hundred twenty-two thousand, two hundred fifty-one".