682221451 has 2 divisors, whose sum is σ = 682221452. Its totient is φ = 682221450.

The previous prime is 682221439. The next prime is 682221461. The reversal of 682221451 is 154122286.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 682221451 - 2²¹ = 680124299 is a prime.

It is a super-2 number, since 2×682221451² = 930852216409090802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (682221461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341110725 + 341110726.

It is an arithmetic number, because the mean of its divisors is an integer number (341110726).

Almost surely, 2^682221451 is an apocalyptic number.

682221451 is a deficient number, since it is larger than the sum of its proper divisors (1).

682221451 is an equidigital number, since it uses as much as digits as its factorization.

682221451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 31.

The square root of 682221451 is about 26119.3692688013. The cubic root of 682221451 is about 880.3224760807.

The spelling of 682221451 in words is "six hundred eighty-two million, two hundred twenty-one thousand, four hundred fifty-one".